diff --git a/.github/workflows/python-app.yml b/.github/workflows/python-app.yml
index 7bc850c..a52dc0d 100644
--- a/.github/workflows/python-app.yml
+++ b/.github/workflows/python-app.yml
@@ -11,10 +11,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
-    - name: Set up Python 3.8
+    - name: Set up Python 3.9
       uses: actions/setup-python@v4
       with:
-        python-version: '3.8'
+        python-version: '3.9'
     - uses: yezz123/setup-uv@v4
     - name: Setup uv venv
       run: |
diff --git a/.python-version b/.python-version
index cc1923a..bd28b9c 100644
--- a/.python-version
+++ b/.python-version
@@ -1 +1 @@
-3.8
+3.9
diff --git a/Makefile b/Makefile
index 650b945..0feea42 100644
--- a/Makefile
+++ b/Makefile
@@ -2,6 +2,7 @@
 
 install:
 	uv sync
+	uv pip install -e .
 
 lint:
 	uv run ruff format tastytrade/ tests/
diff --git a/docs/conf.py b/docs/conf.py
index 6721a6e..27ea038 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -13,7 +13,7 @@
 project = "tastytrade"
 copyright = "2024, Graeme Holliday"
 author = "Graeme Holliday"
-release = "9.1"
+release = "9.2"
 
 # -- General configuration ---------------------------------------------------
 # https://www.sphinx-doc.org/en/master/usage/configuration.html#general-configuration
@@ -23,7 +23,7 @@
     "sphinx.ext.doctest",
     "sphinx.ext.autodoc",
     "sphinx.ext.autosummary",
-    "sphinx.ext.intersphinx",
+    # "sphinx.ext.intersphinx",
     "sphinx_toolbox.more_autodoc.autotypeddict",
     "enum_tools.autoenum",
     "sphinxcontrib.autodoc_pydantic",
diff --git a/pyproject.toml b/pyproject.toml
index 22bd4ae..b1a68c4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "tastytrade"
-version = "9.1"
+version = "9.2"
 description = "An unofficial, sync/async SDK for Tastytrade!"
 readme = "README.md"
 requires-python = ">=3.8"
@@ -29,7 +29,6 @@ dev-dependencies = [
     "pytest-aio>=1.5.0",
     "pytest-cov>=5.0.0",
     "ruff>=0.6.9",
-    "types-pytz>=2024.2.0.20241003",
     "pyright>=1.1.384",
 ]
 
diff --git a/tastytrade/__init__.py b/tastytrade/__init__.py
index b7abb19..61045d0 100644
--- a/tastytrade/__init__.py
+++ b/tastytrade/__init__.py
@@ -4,7 +4,7 @@
 BACKTEST_URL = "https://backtester.vast.tastyworks.com"
 CERT_URL = "https://api.cert.tastyworks.com"
 VAST_URL = "https://vast.tastyworks.com"
-VERSION = "9.1"
+VERSION = "9.2"
 
 logger = logging.getLogger(__name__)
 logger.setLevel(logging.DEBUG)
diff --git a/tastytrade/account.py b/tastytrade/account.py
index b665948..34a8d3b 100644
--- a/tastytrade/account.py
+++ b/tastytrade/account.py
@@ -1,6 +1,6 @@
 from datetime import date, datetime
 from decimal import Decimal
-from typing import Any, Dict, List, Literal, Optional, Union
+from typing import Any, Literal, Optional, Union
 
 import httpx
 from pydantic import BaseModel, model_validator
@@ -229,7 +229,7 @@ class MarginReportEntry(TastytradeJsonDataclass):
     margin_requirement: Decimal
     expected_price_range_up_percent: Optional[Decimal] = None
     expected_price_range_down_percent: Optional[Decimal] = None
-    groups: Optional[List[Dict[str, Any]]] = None
+    groups: Optional[list[dict[str, Any]]] = None
     initial_requirement: Optional[Decimal] = None
     maintenance_requirement: Optional[Decimal] = None
     point_of_no_return_percent: Optional[Decimal] = None
@@ -269,7 +269,7 @@ class MarginReport(TastytradeJsonDataclass):
     reg_t_option_buying_power: Decimal
     maintenance_excess: Decimal
     last_state_timestamp: int
-    groups: List[Union[MarginReportEntry, EmptyDict]]
+    groups: list[Union[MarginReportEntry, EmptyDict]]
     initial_requirement: Optional[Decimal] = None
 
     @model_validator(mode="before")
@@ -430,7 +430,7 @@ class Transaction(TastytradeJsonDataclass):
     other_charge_description: Optional[str] = None
     reverses_id: Optional[int] = None
     cost_basis_reconciliation_date: Optional[date] = None
-    lots: Optional[List[Lot]] = None
+    lots: Optional[list[Lot]] = None
     agency_price: Optional[Decimal] = None
     principal_price: Optional[Decimal] = None
 
@@ -484,7 +484,7 @@ class Account(TastytradeJsonDataclass):
     submitting_user_id: Optional[str] = None
 
     @classmethod
-    async def a_get_accounts(cls, session: Session, include_closed=False) -> List[Self]:
+    async def a_get_accounts(cls, session: Session, include_closed=False) -> list[Self]:
         """
         Gets all trading accounts associated with the Tastytrade user.
 
@@ -500,7 +500,7 @@ async def a_get_accounts(cls, session: Session, include_closed=False) -> List[Se
         ]
 
     @classmethod
-    def get_accounts(cls, session: Session, include_closed=False) -> List[Self]:
+    def get_accounts(cls, session: Session, include_closed=False) -> list[Self]:
         """
         Gets all trading accounts associated with the Tastytrade user.
 
@@ -583,7 +583,7 @@ async def a_get_balance_snapshots(
         start_date: Optional[date] = None,
         snapshot_date: Optional[date] = None,
         time_of_day: Literal["BOD", "EOD"] = "EOD",
-    ) -> List[AccountBalanceSnapshot]:
+    ) -> list[AccountBalanceSnapshot]:
         """
         Returns a list of balance snapshots. This list will
         just have a few snapshots if you don't pass a start
@@ -646,7 +646,7 @@ def get_balance_snapshots(
         start_date: Optional[date] = None,
         snapshot_date: Optional[date] = None,
         time_of_day: Literal["BOD", "EOD"] = "EOD",
-    ) -> List[AccountBalanceSnapshot]:
+    ) -> list[AccountBalanceSnapshot]:
         """
         Returns a list of balance snapshots. This list will
         just have a few snapshots if you don't pass a start
@@ -702,15 +702,15 @@ def get_balance_snapshots(
     async def a_get_positions(
         self,
         session: Session,
-        underlying_symbols: Optional[List[str]] = None,
+        underlying_symbols: Optional[list[str]] = None,
         symbol: Optional[str] = None,
         instrument_type: Optional[InstrumentType] = None,
         include_closed: Optional[bool] = None,
         underlying_product_code: Optional[str] = None,
-        partition_keys: Optional[List[str]] = None,
+        partition_keys: Optional[list[str]] = None,
         net_positions: Optional[bool] = None,
         include_marks: Optional[bool] = None,
-    ) -> List[CurrentPosition]:
+    ) -> list[CurrentPosition]:
         """
         Get the current positions of the account.
 
@@ -747,15 +747,15 @@ async def a_get_positions(
     def get_positions(
         self,
         session: Session,
-        underlying_symbols: Optional[List[str]] = None,
+        underlying_symbols: Optional[list[str]] = None,
         symbol: Optional[str] = None,
         instrument_type: Optional[InstrumentType] = None,
         include_closed: Optional[bool] = None,
         underlying_product_code: Optional[str] = None,
-        partition_keys: Optional[List[str]] = None,
+        partition_keys: Optional[list[str]] = None,
         net_positions: Optional[bool] = None,
         include_marks: Optional[bool] = None,
-    ) -> List[CurrentPosition]:
+    ) -> list[CurrentPosition]:
         """
         Get the current positions of the account.
 
@@ -796,8 +796,8 @@ async def a_get_history(
         page_offset: Optional[int] = None,
         sort: str = "Desc",
         type: Optional[str] = None,
-        types: Optional[List[str]] = None,
-        sub_types: Optional[List[str]] = None,
+        types: Optional[list[str]] = None,
+        sub_types: Optional[list[str]] = None,
         start_date: Optional[date] = None,
         end_date: Optional[date] = None,
         instrument_type: Optional[InstrumentType] = None,
@@ -808,7 +808,7 @@ async def a_get_history(
         futures_symbol: Optional[str] = None,
         start_at: Optional[datetime] = None,
         end_at: Optional[datetime] = None,
-    ) -> List[Transaction]:
+    ) -> list[Transaction]:
         """
         Get transaction history of the account.
 
@@ -891,8 +891,8 @@ def get_history(
         page_offset: Optional[int] = None,
         sort: str = "Desc",
         type: Optional[str] = None,
-        types: Optional[List[str]] = None,
-        sub_types: Optional[List[str]] = None,
+        types: Optional[list[str]] = None,
+        sub_types: Optional[list[str]] = None,
         start_date: Optional[date] = None,
         end_date: Optional[date] = None,
         instrument_type: Optional[InstrumentType] = None,
@@ -903,7 +903,7 @@ def get_history(
         futures_symbol: Optional[str] = None,
         start_at: Optional[datetime] = None,
         end_at: Optional[datetime] = None,
-    ) -> List[Transaction]:
+    ) -> list[Transaction]:
         """
         Get transaction history of the account.
 
@@ -1036,7 +1036,7 @@ async def a_get_net_liquidating_value_history(
         session: Session,
         time_back: Optional[str] = None,
         start_time: Optional[datetime] = None,
-    ) -> List[NetLiqOhlc]:
+    ) -> list[NetLiqOhlc]:
         """
         Returns a list of account net liquidating value snapshots over the
         specified time period.
@@ -1070,7 +1070,7 @@ def get_net_liquidating_value_history(
         session: Session,
         time_back: Optional[str] = None,
         start_time: Optional[datetime] = None,
-    ) -> List[NetLiqOhlc]:
+    ) -> list[NetLiqOhlc]:
         """
         Returns a list of account net liquidating value snapshots over the
         specified time period.
@@ -1175,7 +1175,7 @@ def get_margin_requirements(self, session: Session) -> MarginReport:
         data = session._get(f"/margin/accounts/{self.account_number}/requirements")
         return MarginReport(**data)
 
-    async def a_get_live_orders(self, session: Session) -> List[PlacedOrder]:
+    async def a_get_live_orders(self, session: Session) -> list[PlacedOrder]:
         """
         Get orders placed today for the account.
 
@@ -1184,7 +1184,7 @@ async def a_get_live_orders(self, session: Session) -> List[PlacedOrder]:
         data = await session._a_get(f"/accounts/{self.account_number}/orders/live")
         return [PlacedOrder(**i) for i in data["items"]]
 
-    def get_live_orders(self, session: Session) -> List[PlacedOrder]:
+    def get_live_orders(self, session: Session) -> list[PlacedOrder]:
         """
         Get orders placed today for the account.
 
@@ -1195,7 +1195,7 @@ def get_live_orders(self, session: Session) -> List[PlacedOrder]:
 
     async def a_get_live_complex_orders(
         self, session: Session
-    ) -> List[PlacedComplexOrder]:
+    ) -> list[PlacedComplexOrder]:
         """
         Get complex orders placed today for the account.
 
@@ -1206,7 +1206,7 @@ async def a_get_live_complex_orders(
         )
         return [PlacedComplexOrder(**i) for i in data["items"]]
 
-    def get_live_complex_orders(self, session: Session) -> List[PlacedComplexOrder]:
+    def get_live_complex_orders(self, session: Session) -> list[PlacedComplexOrder]:
         """
         Get complex orders placed today for the account.
 
@@ -1309,13 +1309,13 @@ async def a_get_order_history(
         start_date: Optional[date] = None,
         end_date: Optional[date] = None,
         underlying_symbol: Optional[str] = None,
-        statuses: Optional[List[OrderStatus]] = None,
+        statuses: Optional[list[OrderStatus]] = None,
         futures_symbol: Optional[str] = None,
         underlying_instrument_type: Optional[InstrumentType] = None,
         sort: Optional[str] = None,
         start_at: Optional[datetime] = None,
         end_at: Optional[datetime] = None,
-    ) -> List[PlacedOrder]:
+    ) -> list[PlacedOrder]:
         """
         Get order history of the account.
 
@@ -1390,13 +1390,13 @@ def get_order_history(
         start_date: Optional[date] = None,
         end_date: Optional[date] = None,
         underlying_symbol: Optional[str] = None,
-        statuses: Optional[List[OrderStatus]] = None,
+        statuses: Optional[list[OrderStatus]] = None,
         futures_symbol: Optional[str] = None,
         underlying_instrument_type: Optional[InstrumentType] = None,
         sort: Optional[str] = None,
         start_at: Optional[datetime] = None,
         end_at: Optional[datetime] = None,
-    ) -> List[PlacedOrder]:
+    ) -> list[PlacedOrder]:
         """
         Get order history of the account.
 
@@ -1465,7 +1465,7 @@ def get_order_history(
 
     async def a_get_complex_order_history(
         self, session: Session, per_page: int = 50, page_offset: Optional[int] = None
-    ) -> List[PlacedComplexOrder]:
+    ) -> list[PlacedComplexOrder]:
         """
         Get order history of the account.
 
@@ -1504,7 +1504,7 @@ async def a_get_complex_order_history(
 
     def get_complex_order_history(
         self, session: Session, per_page: int = 50, page_offset: Optional[int] = None
-    ) -> List[PlacedComplexOrder]:
+    ) -> list[PlacedComplexOrder]:
         """
         Get order history of the account.
 
@@ -1653,7 +1653,7 @@ async def a_get_order_chains(
         symbol: str,
         start_time: datetime,
         end_time: datetime,
-    ) -> List[OrderChain]:
+    ) -> list[OrderChain]:
         """
         Get a list of order chains (open + rolls + close) for given symbol
         over the given time frame, with total P/L, commissions, etc.
@@ -1692,7 +1692,7 @@ def get_order_chains(
         symbol: str,
         start_time: datetime,
         end_time: datetime,
-    ) -> List[OrderChain]:
+    ) -> list[OrderChain]:
         """
         Get a list of order chains (open + rolls + close) for given symbol
         over the given time frame, with total P/L, commissions, etc.
diff --git a/tastytrade/backtest.py b/tastytrade/backtest.py
index 028670b..db936e6 100644
--- a/tastytrade/backtest.py
+++ b/tastytrade/backtest.py
@@ -1,7 +1,7 @@
 import asyncio
 from datetime import date, datetime
 from decimal import Decimal
-from typing import AsyncGenerator, List, Literal, Optional
+from typing import AsyncGenerator, Literal, Optional
 
 import httpx
 from pydantic import BaseModel, Field
@@ -71,7 +71,7 @@ class Backtest(BacktestJsonDataclass):
     symbol: str
     entry_conditions: BacktestEntry
     exit_conditions: BacktestExit
-    legs: List[BacktestLeg]
+    legs: list[BacktestLeg]
     start_date: date
     end_date: date = date(2024, 7, 31)
     status: str = "pending"
@@ -138,9 +138,9 @@ class BacktestResults(BacktestJsonDataclass):
     Dataclass containing partial or finished results of a backtest.
     """
 
-    snapshots: Optional[List[BacktestSnapshot]]
+    snapshots: Optional[list[BacktestSnapshot]]
     statistics: Optional[BacktestStatistics]
-    trials: Optional[List[BacktestTrial]]
+    trials: Optional[list[BacktestTrial]]
 
 
 class BacktestResponse(Backtest):
diff --git a/tastytrade/instruments.py b/tastytrade/instruments.py
index 6fe8246..bc0a5d0 100644
--- a/tastytrade/instruments.py
+++ b/tastytrade/instruments.py
@@ -3,7 +3,7 @@
 from datetime import date, datetime
 from decimal import Decimal
 from enum import Enum
-from typing import Dict, List, Optional
+from typing import Optional
 
 from pydantic import model_validator
 from typing_extensions import Self
@@ -118,7 +118,7 @@ class NestedOptionChainExpiration(TastytradeJsonDataclass):
     expiration_date: date
     days_to_expiration: int
     settlement_type: str
-    strikes: List[Strike]
+    strikes: list[Strike]
 
 
 class NestedFutureOptionChainExpiration(TastytradeJsonDataclass):
@@ -140,8 +140,8 @@ class NestedFutureOptionChainExpiration(TastytradeJsonDataclass):
     option_contract_symbol: str
     stops_trading_at: datetime
     settlement_type: str
-    strikes: List[Strike]
-    tick_sizes: List[TickSize]
+    strikes: list[Strike]
+    tick_sizes: list[TickSize]
 
 
 class NestedFutureOptionFuture(TastytradeJsonDataclass):
@@ -196,13 +196,13 @@ class Cryptocurrency(TradeableTastytradeJsonDataclass):
     is_closing_only: bool
     active: bool
     tick_size: Decimal
-    destination_venue_symbols: List[DestinationVenueSymbol]
+    destination_venue_symbols: list[DestinationVenueSymbol]
     streamer_symbol: Optional[str] = None
 
     @classmethod
     async def a_get_cryptocurrencies(
-        cls, session: Session, symbols: List[str] = []
-    ) -> List[Self]:
+        cls, session: Session, symbols: list[str] = []
+    ) -> list[Self]:
         """
         Returns a list of cryptocurrency objects from the given symbols.
 
@@ -215,8 +215,8 @@ async def a_get_cryptocurrencies(
 
     @classmethod
     def get_cryptocurrencies(
-        cls, session: Session, symbols: List[str] = []
-    ) -> List[Self]:
+        cls, session: Session, symbols: list[str] = []
+    ) -> list[Self]:
         """
         Returns a list of cryptocurrency objects from the given symbols.
 
@@ -260,7 +260,6 @@ class Equity(TradeableTastytradeJsonDataclass):
 
     id: int
     is_index: bool
-    listed_market: str
     description: str
     lendability: str
     market_time_instrument_collection: str
@@ -276,8 +275,9 @@ class Equity(TradeableTastytradeJsonDataclass):
     halted_at: Optional[datetime] = None
     stops_trading_at: Optional[datetime] = None
     is_fractional_quantity_eligible: Optional[bool] = None
-    tick_sizes: Optional[List[TickSize]] = None
-    option_tick_sizes: Optional[List[TickSize]] = None
+    tick_sizes: Optional[list[TickSize]] = None
+    listed_market: Optional[str] = None
+    option_tick_sizes: Optional[list[TickSize]] = None
 
     @classmethod
     async def a_get_active_equities(
@@ -286,7 +286,7 @@ async def a_get_active_equities(
         per_page: int = 1000,
         page_offset: Optional[int] = None,
         lendability: Optional[str] = None,
-    ) -> List[Self]:
+    ) -> list[Self]:
         """
         Returns a list of actively traded Equity objects.
 
@@ -337,7 +337,7 @@ def get_active_equities(
         per_page: int = 1000,
         page_offset: Optional[int] = None,
         lendability: Optional[str] = None,
-    ) -> List[Self]:
+    ) -> list[Self]:
         """
         Returns a list of actively traded Equity objects.
 
@@ -385,11 +385,11 @@ def get_active_equities(
     async def a_get_equities(
         cls,
         session: Session,
-        symbols: Optional[List[str]] = None,
+        symbols: Optional[list[str]] = None,
         lendability: Optional[str] = None,
         is_index: Optional[bool] = None,
         is_etf: Optional[bool] = None,
-    ) -> List[Self]:
+    ) -> list[Self]:
         """
         Returns a list of Equity objects from the given symbols.
 
@@ -417,11 +417,11 @@ async def a_get_equities(
     def get_equities(
         cls,
         session: Session,
-        symbols: Optional[List[str]] = None,
+        symbols: Optional[list[str]] = None,
         lendability: Optional[str] = None,
         is_index: Optional[bool] = None,
         is_etf: Optional[bool] = None,
-    ) -> List[Self]:
+    ) -> list[Self]:
         """
         Returns a list of Equity objects from the given symbols.
 
@@ -507,10 +507,10 @@ def set_streamer_symbol(self) -> Self:
     async def a_get_options(
         cls,
         session: Session,
-        symbols: Optional[List[str]] = None,
+        symbols: Optional[list[str]] = None,
         active: Optional[bool] = None,
         with_expired: Optional[bool] = None,
-    ) -> List[Self]:
+    ) -> list[Self]:
         """
         Returns a list of Option objects from the given symbols.
 
@@ -530,10 +530,10 @@ async def a_get_options(
     def get_options(
         cls,
         session: Session,
-        symbols: Optional[List[str]] = None,
+        symbols: Optional[list[str]] = None,
         active: Optional[bool] = None,
         with_expired: Optional[bool] = None,
-    ) -> List[Self]:
+    ) -> list[Self]:
         """
         Returns a list of Option objects from the given symbols.
 
@@ -655,9 +655,9 @@ class NestedOptionChain(TastytradeJsonDataclass):
     root_symbol: str
     option_chain_type: str
     shares_per_contract: int
-    tick_sizes: List[TickSize]
-    deliverables: List[Deliverable]
-    expirations: List[NestedOptionChainExpiration]
+    tick_sizes: list[TickSize]
+    deliverables: list[Deliverable]
+    expirations: list[NestedOptionChainExpiration]
 
     @classmethod
     async def a_get_chain(cls, session: Session, symbol: str) -> Self:
@@ -699,8 +699,8 @@ class FutureProduct(TastytradeJsonDataclass):
     description: str
     exchange: str
     product_type: str
-    listed_months: List[FutureMonthCode]
-    active_months: List[FutureMonthCode]
+    listed_months: list[FutureMonthCode]
+    active_months: list[FutureMonthCode]
     notional_multiplier: Decimal
     tick_size: Decimal
     display_factor: Decimal
@@ -722,10 +722,10 @@ class FutureProduct(TastytradeJsonDataclass):
     clearport_code: Optional[str] = None
     legacy_code: Optional[str] = None
     legacy_exchange_code: Optional[str] = None
-    option_products: Optional[List["FutureOptionProduct"]] = None
+    option_products: Optional[list["FutureOptionProduct"]] = None
 
     @classmethod
-    async def a_get_future_products(cls, session: Session) -> List[Self]:
+    async def a_get_future_products(cls, session: Session) -> list[Self]:
         """
         Returns a list of FutureProduct objects available.
 
@@ -735,7 +735,7 @@ async def a_get_future_products(cls, session: Session) -> List[Self]:
         return [cls(**i) for i in data["items"]]
 
     @classmethod
-    def get_future_products(cls, session: Session) -> List[Self]:
+    def get_future_products(cls, session: Session) -> list[Self]:
         """
         Returns a list of FutureProduct objects available.
 
@@ -811,17 +811,17 @@ class Future(TradeableTastytradeJsonDataclass):
     roll_target_symbol: Optional[str] = None
     true_underlying_symbol: Optional[str] = None
     future_etf_equivalent: Optional[FutureEtfEquivalent] = None
-    tick_sizes: Optional[List[TickSize]] = None
-    option_tick_sizes: Optional[List[TickSize]] = None
-    spread_tick_sizes: Optional[List[TickSize]] = None
+    tick_sizes: Optional[list[TickSize]] = None
+    option_tick_sizes: Optional[list[TickSize]] = None
+    spread_tick_sizes: Optional[list[TickSize]] = None
 
     @classmethod
     async def a_get_futures(
         cls,
         session: Session,
-        symbols: Optional[List[str]] = None,
-        product_codes: Optional[List[str]] = None,
-    ) -> List[Self]:
+        symbols: Optional[list[str]] = None,
+        product_codes: Optional[list[str]] = None,
+    ) -> list[Self]:
         """
         Returns a list of Future objects from the given symbols
         or product codes.
@@ -844,9 +844,9 @@ async def a_get_futures(
     def get_futures(
         cls,
         session: Session,
-        symbols: Optional[List[str]] = None,
-        product_codes: Optional[List[str]] = None,
-    ) -> List[Self]:
+        symbols: Optional[list[str]] = None,
+        product_codes: Optional[list[str]] = None,
+    ) -> list[Self]:
         """
         Returns a list of Future objects from the given symbols
         or product codes.
@@ -916,7 +916,7 @@ class FutureOptionProduct(TastytradeJsonDataclass):
     clearport_code: Optional[str] = None
 
     @classmethod
-    async def a_get_future_option_products(cls, session: Session) -> List[Self]:
+    async def a_get_future_option_products(cls, session: Session) -> list[Self]:
         """
         Returns a list of FutureOptionProduct objects available.
 
@@ -926,7 +926,7 @@ async def a_get_future_option_products(cls, session: Session) -> List[Self]:
         return [cls(**i) for i in data["items"]]
 
     @classmethod
-    def get_future_option_products(cls, session: Session) -> List[Self]:
+    def get_future_option_products(cls, session: Session) -> list[Self]:
         """
         Returns a list of FutureOptionProduct objects available.
 
@@ -1014,12 +1014,12 @@ class FutureOption(TradeableTastytradeJsonDataclass):
     async def a_get_future_options(
         cls,
         session: Session,
-        symbols: Optional[List[str]] = None,
+        symbols: Optional[list[str]] = None,
         root_symbol: Optional[str] = None,
         expiration_date: Optional[date] = None,
         option_type: Optional[OptionType] = None,
         strike_price: Optional[Decimal] = None,
-    ) -> List[Self]:
+    ) -> list[Self]:
         """
         Returns a list of FutureOption objects from the given symbols.
 
@@ -1051,12 +1051,12 @@ async def a_get_future_options(
     def get_future_options(
         cls,
         session: Session,
-        symbols: Optional[List[str]] = None,
+        symbols: Optional[list[str]] = None,
         root_symbol: Optional[str] = None,
         expiration_date: Optional[date] = None,
         option_type: Optional[OptionType] = None,
         strike_price: Optional[Decimal] = None,
-    ) -> List[Self]:
+    ) -> list[Self]:
         """
         Returns a list of FutureOption objects from the given symbols.
 
@@ -1118,7 +1118,7 @@ class NestedFutureOptionSubchain(TastytradeJsonDataclass):
     underlying_symbol: str
     root_symbol: str
     exercise_style: str
-    expirations: List[NestedFutureOptionChainExpiration]
+    expirations: list[NestedFutureOptionChainExpiration]
 
 
 class NestedFutureOptionChain(TastytradeJsonDataclass):
@@ -1131,8 +1131,8 @@ class NestedFutureOptionChain(TastytradeJsonDataclass):
     extra API request or two.
     """
 
-    futures: List[NestedFutureOptionFuture]
-    option_chains: List[NestedFutureOptionSubchain]
+    futures: list[NestedFutureOptionFuture]
+    option_chains: list[NestedFutureOptionSubchain]
 
     @classmethod
     async def a_get_chain(cls, session: Session, symbol: str) -> Self:
@@ -1175,8 +1175,8 @@ class Warrant(TastytradeJsonDataclass):
 
     @classmethod
     async def a_get_warrants(
-        cls, session: Session, symbols: Optional[List[str]] = None
-    ) -> List[Self]:
+        cls, session: Session, symbols: Optional[list[str]] = None
+    ) -> list[Self]:
         """
         Returns a list of Warrant objects from the given symbols.
 
@@ -1189,8 +1189,8 @@ async def a_get_warrants(
 
     @classmethod
     def get_warrants(
-        cls, session: Session, symbols: Optional[List[str]] = None
-    ) -> List[Self]:
+        cls, session: Session, symbols: Optional[list[str]] = None
+    ) -> list[Self]:
         """
         Returns a list of Warrant objects from the given symbols.
 
@@ -1230,7 +1230,7 @@ def get_warrant(cls, session: Session, symbol: str) -> Self:
 
 async def a_get_quantity_decimal_precisions(
     session: Session,
-) -> List[QuantityDecimalPrecision]:
+) -> list[QuantityDecimalPrecision]:
     """
     Returns a list of QuantityDecimalPrecision objects for different
     types of instruments.
@@ -1241,7 +1241,7 @@ async def a_get_quantity_decimal_precisions(
     return [QuantityDecimalPrecision(**i) for i in data["items"]]
 
 
-def get_quantity_decimal_precisions(session: Session) -> List[QuantityDecimalPrecision]:
+def get_quantity_decimal_precisions(session: Session) -> list[QuantityDecimalPrecision]:
     """
     Returns a list of QuantityDecimalPrecision objects for different
     types of instruments.
@@ -1252,7 +1252,7 @@ def get_quantity_decimal_precisions(session: Session) -> List[QuantityDecimalPre
     return [QuantityDecimalPrecision(**i) for i in data["items"]]
 
 
-async def a_get_option_chain(session: Session, symbol: str) -> Dict[date, List[Option]]:
+async def a_get_option_chain(session: Session, symbol: str) -> dict[date, list[Option]]:
     """
     Returns a mapping of expiration date to a list of option objects
     representing the options chain for the given symbol.
@@ -1275,7 +1275,7 @@ async def a_get_option_chain(session: Session, symbol: str) -> Dict[date, List[O
     return chain
 
 
-def get_option_chain(session: Session, symbol: str) -> Dict[date, List[Option]]:
+def get_option_chain(session: Session, symbol: str) -> dict[date, list[Option]]:
     """
     Returns a mapping of expiration date to a list of option objects
     representing the options chain for the given symbol.
@@ -1300,7 +1300,7 @@ def get_option_chain(session: Session, symbol: str) -> Dict[date, List[Option]]:
 
 async def a_get_future_option_chain(
     session: Session, symbol: str
-) -> Dict[date, List[FutureOption]]:
+) -> dict[date, list[FutureOption]]:
     """
     Returns a mapping of expiration date to a list of futures options
     objects representing the options chain for the given symbol.
@@ -1325,7 +1325,7 @@ async def a_get_future_option_chain(
 
 def get_future_option_chain(
     session: Session, symbol: str
-) -> Dict[date, List[FutureOption]]:
+) -> dict[date, list[FutureOption]]:
     """
     Returns a mapping of expiration date to a list of futures options
     objects representing the options chain for the given symbol.
diff --git a/tastytrade/metrics.py b/tastytrade/metrics.py
index 1d873bc..670e863 100644
--- a/tastytrade/metrics.py
+++ b/tastytrade/metrics.py
@@ -1,6 +1,6 @@
 from datetime import date, datetime
 from decimal import Decimal
-from typing import List, Optional
+from typing import Optional
 
 from tastytrade.session import Session
 from tastytrade.utils import TastytradeJsonDataclass
@@ -84,7 +84,7 @@ class MarketMetricInfo(TastytradeJsonDataclass):
     liquidity_rating: Optional[int] = None
     updated_at: datetime
     option_expiration_implied_volatilities: Optional[
-        List[OptionExpirationImpliedVolatility]
+        list[OptionExpirationImpliedVolatility]
     ] = None  # noqa: E501
     beta: Optional[Decimal] = None
     corr_spy_3month: Optional[Decimal] = None
@@ -114,8 +114,8 @@ class MarketMetricInfo(TastytradeJsonDataclass):
 
 
 async def a_get_market_metrics(
-    session: Session, symbols: List[str]
-) -> List[MarketMetricInfo]:
+    session: Session, symbols: list[str]
+) -> list[MarketMetricInfo]:
     """
     Retrieves market metrics for the given symbols.
 
@@ -128,7 +128,7 @@ async def a_get_market_metrics(
     return [MarketMetricInfo(**i) for i in data["items"]]
 
 
-def get_market_metrics(session: Session, symbols: List[str]) -> List[MarketMetricInfo]:
+def get_market_metrics(session: Session, symbols: list[str]) -> list[MarketMetricInfo]:
     """
     Retrieves market metrics for the given symbols.
 
@@ -139,7 +139,7 @@ def get_market_metrics(session: Session, symbols: List[str]) -> List[MarketMetri
     return [MarketMetricInfo(**i) for i in data["items"]]
 
 
-async def a_get_dividends(session: Session, symbol: str) -> List[DividendInfo]:
+async def a_get_dividends(session: Session, symbol: str) -> list[DividendInfo]:
     """
     Retrieves dividend information for the given symbol.
 
@@ -153,7 +153,7 @@ async def a_get_dividends(session: Session, symbol: str) -> List[DividendInfo]:
     return [DividendInfo(**i) for i in data["items"]]
 
 
-def get_dividends(session: Session, symbol: str) -> List[DividendInfo]:
+def get_dividends(session: Session, symbol: str) -> list[DividendInfo]:
     """
     Retrieves dividend information for the given symbol.
 
@@ -169,7 +169,7 @@ def get_dividends(session: Session, symbol: str) -> List[DividendInfo]:
 
 async def a_get_earnings(
     session: Session, symbol: str, start_date: date
-) -> List[EarningsInfo]:
+) -> list[EarningsInfo]:
     """
     Retrieves earnings information for the given symbol.
 
@@ -186,7 +186,7 @@ async def a_get_earnings(
     return [EarningsInfo(**i) for i in data["items"]]
 
 
-def get_earnings(session: Session, symbol: str, start_date: date) -> List[EarningsInfo]:
+def get_earnings(session: Session, symbol: str, start_date: date) -> list[EarningsInfo]:
     """
     Retrieves earnings information for the given symbol.
 
diff --git a/tastytrade/order.py b/tastytrade/order.py
index f7fc304..2442c27 100644
--- a/tastytrade/order.py
+++ b/tastytrade/order.py
@@ -1,7 +1,7 @@
 from datetime import date, datetime
 from decimal import Decimal
 from enum import Enum
-from typing import Any, Dict, List, Optional, Union
+from typing import Any, Optional, Union
 
 from pydantic import computed_field, field_serializer, model_validator
 
@@ -135,7 +135,7 @@ class Leg(TastytradeJsonDataclass):
     action: OrderAction
     quantity: Optional[Decimal] = None
     remaining_quantity: Optional[Decimal] = None
-    fills: Optional[List[FillInfo]] = None
+    fills: Optional[list[FillInfo]] = None
 
 
 class TradeableTastytradeJsonDataclass(TastytradeJsonDataclass):
@@ -206,7 +206,7 @@ class OrderCondition(TastytradeJsonDataclass):
     is_threshold_based_on_notional: bool
     triggered_at: datetime
     triggered_value: Decimal
-    price_components: List[OrderConditionPriceComponent]
+    price_components: list[OrderConditionPriceComponent]
 
 
 class OrderRule(TastytradeJsonDataclass):
@@ -218,7 +218,7 @@ class OrderRule(TastytradeJsonDataclass):
     routed_at: datetime
     cancel_at: datetime
     cancelled_at: datetime
-    order_conditions: List[OrderCondition]
+    order_conditions: list[OrderCondition]
 
 
 class NewOrder(TastytradeJsonDataclass):
@@ -230,7 +230,7 @@ class NewOrder(TastytradeJsonDataclass):
     time_in_force: OrderTimeInForce
     order_type: OrderType
     source: str = f"tastyware/tastytrade:v{VERSION}"
-    legs: List[Leg]
+    legs: list[Leg]
     gtc_date: Optional[date] = None
     #: For a stop/stop limit order. If the latter, use price for the limit price
     stop_trigger: Optional[Decimal] = None
@@ -263,7 +263,7 @@ class NewComplexOrder(TastytradeJsonDataclass):
     Also used for modifying existing orders.
     """
 
-    orders: List[NewOrder]
+    orders: list[NewOrder]
     source: str = f"tastyware/tastytrade:v{VERSION}"
     trigger_order: Optional[NewOrder] = None
     type: ComplexOrderType = ComplexOrderType.OCO
@@ -290,7 +290,7 @@ class PlacedOrder(TastytradeJsonDataclass):
     editable: bool
     edited: bool
     updated_at: datetime
-    legs: List[Leg]
+    legs: list[Leg]
     #: the ID of the order; test orders placed with dry_run don't have an ID
     id: int = -1
     size: Optional[Decimal] = None
@@ -330,7 +330,7 @@ class PlacedComplexOrder(TastytradeJsonDataclass):
 
     account_number: str
     type: str
-    orders: List[PlacedOrder]
+    orders: list[PlacedOrder]
     #: the ID of the order; test orders placed with dry_run don't have an ID
     id: int = -1
     trigger_order: Optional[PlacedOrder] = None
@@ -338,7 +338,7 @@ class PlacedComplexOrder(TastytradeJsonDataclass):
     ratio_price_threshold: Optional[Decimal] = None
     ratio_price_comparator: Optional[str] = None
     ratio_price_is_threshold_based_on_notional: Optional[bool] = None
-    related_orders: Optional[List[Dict[str, str]]] = None
+    related_orders: Optional[list[dict[str, str]]] = None
 
 
 class BuyingPowerEffect(TastytradeJsonDataclass):
@@ -405,8 +405,8 @@ class PlacedComplexOrderResponse(TastytradeJsonDataclass):
     buying_power_effect: BuyingPowerEffect
     complex_order: PlacedComplexOrder
     fee_calculation: Optional[FeeCalculation] = None
-    warnings: Optional[List[Message]] = None
-    errors: Optional[List[Message]] = None
+    warnings: Optional[list[Message]] = None
+    errors: Optional[list[Message]] = None
 
 
 class PlacedOrderResponse(TastytradeJsonDataclass):
@@ -417,8 +417,8 @@ class PlacedOrderResponse(TastytradeJsonDataclass):
     buying_power_effect: BuyingPowerEffect
     order: PlacedOrder
     fee_calculation: Optional[FeeCalculation] = None
-    warnings: Optional[List[Message]] = None
-    errors: Optional[List[Message]] = None
+    warnings: Optional[list[Message]] = None
+    errors: Optional[list[Message]] = None
 
 
 class OrderChainEntry(TastytradeJsonDataclass):
@@ -461,8 +461,8 @@ class OrderChainNode(TastytradeJsonDataclass):
     fill_cost_per_quantity: Optional[Decimal] = None
     order_fill_count: Optional[int] = None
     roll: Optional[bool] = None
-    legs: Optional[List[OrderChainLeg]] = None
-    entries: Optional[List[OrderChainEntry]] = None
+    legs: Optional[list[OrderChainLeg]] = None
+    entries: Optional[list[OrderChainEntry]] = None
 
     @model_validator(mode="before")
     @classmethod
@@ -501,7 +501,7 @@ class ComputedData(TastytradeJsonDataclass):
     total_cost: Decimal
     gcd_open_quantity: Decimal
     fees_missing: bool
-    open_entries: List[OrderChainEntry]
+    open_entries: list[OrderChainEntry]
     total_cost_per_unit: Optional[Decimal] = None
 
     @model_validator(mode="before")
@@ -534,7 +534,7 @@ class OrderChain(TastytradeJsonDataclass):
     description: str
     underlying_symbol: str
     computed_data: ComputedData
-    lite_nodes: List[OrderChainNode]
+    lite_nodes: list[OrderChainNode]
     lite_nodes_sizes: Optional[int] = None
     updated_at: Optional[datetime] = None
     created_at: Optional[datetime] = None
diff --git a/tastytrade/search.py b/tastytrade/search.py
index 5fd5678..618da92 100644
--- a/tastytrade/search.py
+++ b/tastytrade/search.py
@@ -1,5 +1,3 @@
-from typing import List
-
 from tastytrade.session import Session
 from tastytrade.utils import TastytradeJsonDataclass
 
@@ -13,7 +11,7 @@ class SymbolData(TastytradeJsonDataclass):
     description: str
 
 
-async def a_symbol_search(session: Session, symbol: str) -> List[SymbolData]:
+async def a_symbol_search(session: Session, symbol: str) -> list[SymbolData]:
     """
     Performs a symbol search using the Tastytrade API and returns a
     list of symbols that are similar to the given search phrase.
@@ -31,7 +29,7 @@ async def a_symbol_search(session: Session, symbol: str) -> List[SymbolData]:
         return [SymbolData(**i) for i in data["items"]]
 
 
-def symbol_search(session: Session, symbol: str) -> List[SymbolData]:
+def symbol_search(session: Session, symbol: str) -> list[SymbolData]:
     """
     Performs a symbol search using the Tastytrade API and returns a
     list of symbols that are similar to the given search phrase.
diff --git a/tastytrade/session.py b/tastytrade/session.py
index 8d13279..58a7df8 100644
--- a/tastytrade/session.py
+++ b/tastytrade/session.py
@@ -1,5 +1,5 @@
 from datetime import date, datetime
-from typing import Any, Dict, List, Optional, Union
+from typing import Any, Optional, Union
 
 import httpx
 
@@ -95,7 +95,7 @@ class CustomerAccountType(TastytradeJsonDataclass):
     is_tax_advantaged: bool
     is_publicly_available: bool
     has_multiple_owners: bool
-    margin_types: List[CustomerAccountMarginType]
+    margin_types: list[CustomerAccountMarginType]
 
 
 class CustomerEntity(TastytradeJsonDataclass):
@@ -107,7 +107,7 @@ class CustomerEntity(TastytradeJsonDataclass):
     address: Address
     business_nature: str
     email: str
-    entity_officers: List[EntityOfficer]
+    entity_officers: list[EntityOfficer]
     entity_suitability: EntitySuitability
     entity_type: str
     foreign_institution: str
@@ -207,7 +207,7 @@ class Customer(TastytradeJsonDataclass):
     has_delayed_quotes: bool
     has_pending_or_approved_application: bool
     is_professional: bool
-    permitted_account_types: List[CustomerAccountType]
+    permitted_account_types: list[CustomerAccountType]
     created_at: datetime
     identifiable_type: str
     person: CustomerPerson
@@ -341,11 +341,11 @@ def __init__(
         #: URL for dxfeed websocket
         self.dxlink_url = data["dxlink-url"]
 
-    async def _a_get(self, url, **kwargs) -> Dict[str, Any]:
+    async def _a_get(self, url, **kwargs) -> dict[str, Any]:
         response = await self.async_client.get(url, timeout=30, **kwargs)
         return self._validate_and_parse(response)
 
-    def _get(self, url, **kwargs) -> Dict[str, Any]:
+    def _get(self, url, **kwargs) -> dict[str, Any]:
         response = self.sync_client.get(url, timeout=30, **kwargs)
         return self._validate_and_parse(response)
 
@@ -357,23 +357,23 @@ def _delete(self, url, **kwargs) -> None:
         response = self.sync_client.delete(url, **kwargs)
         validate_response(response)
 
-    async def _a_post(self, url, **kwargs) -> Dict[str, Any]:
+    async def _a_post(self, url, **kwargs) -> dict[str, Any]:
         response = await self.async_client.post(url, **kwargs)
         return self._validate_and_parse(response)
 
-    def _post(self, url, **kwargs) -> Dict[str, Any]:
+    def _post(self, url, **kwargs) -> dict[str, Any]:
         response = self.sync_client.post(url, **kwargs)
         return self._validate_and_parse(response)
 
-    async def _a_put(self, url, **kwargs) -> Dict[str, Any]:
+    async def _a_put(self, url, **kwargs) -> dict[str, Any]:
         response = await self.async_client.put(url, **kwargs)
         return self._validate_and_parse(response)
 
-    def _put(self, url, **kwargs) -> Dict[str, Any]:
+    def _put(self, url, **kwargs) -> dict[str, Any]:
         response = self.sync_client.put(url, **kwargs)
         return self._validate_and_parse(response)
 
-    def _validate_and_parse(self, response: httpx._models.Response) -> Dict[str, Any]:
+    def _validate_and_parse(self, response: httpx._models.Response) -> dict[str, Any]:
         validate_response(response)
         return response.json()["data"]
 
diff --git a/tastytrade/streamer.py b/tastytrade/streamer.py
index ffe6a68..0158d30 100644
--- a/tastytrade/streamer.py
+++ b/tastytrade/streamer.py
@@ -6,7 +6,7 @@
 from decimal import Decimal
 from enum import Enum
 from ssl import SSLContext, create_default_context
-from typing import Any, AsyncIterator, Dict, List, Optional, Type, TypeVar, Union
+from typing import Any, AsyncIterator, Optional, Type, TypeVar, Union
 
 import websockets
 from pydantic import model_validator
@@ -39,7 +39,6 @@
 STREAMER_URL = "wss://streamer.tastyworks.com"
 
 DXLINK_VERSION = "0.1-js/1.0.0-beta.4"
-T = TypeVar("T")
 
 
 class QuoteAlert(TastytradeJsonDataclass):
@@ -126,6 +125,7 @@ class SubscriptionType(str, Enum):
     UnderlyingYearGainSummary,
     Watchlist,
 ]
+T = TypeVar("T", bound=AlertType)
 
 MAP_EVENTS = {
     "Candle": Candle,
@@ -151,6 +151,7 @@ class SubscriptionType(str, Enum):
     Trade,
     Underlying,
 ]
+U = TypeVar("U", bound=EventType)
 
 
 class AlertStreamer:
@@ -186,7 +187,7 @@ def __init__(self, session: Session):
         #: The base url for the streamer websocket
         self.base_url: str = CERT_STREAMER_URL if session.is_test else STREAMER_URL
 
-        self._queues: Dict[str, Queue] = defaultdict(Queue)
+        self._queues: dict[str, Queue] = defaultdict(Queue)
         self._websocket: Optional[WebSocketClientProtocol] = None
         self._connect_task = asyncio.create_task(self._connect())
 
@@ -259,7 +260,7 @@ async def _map_message(self, type_str: str, data: dict):
             )
         await self._queues[type_str].put(MAP_ALERTS[type_str](**data))
 
-    async def subscribe_accounts(self, accounts: List[Account]) -> None:
+    async def subscribe_accounts(self, accounts: list[Account]) -> None:
         """
         Subscribes to account-level updates (balances, orders, positions).
 
@@ -302,13 +303,13 @@ async def _heartbeat(self) -> None:
     async def _subscribe(
         self,
         subscription: SubscriptionType,
-        value: Union[Optional[str], List[str]] = "",
+        value: Union[Optional[str], list[str]] = "",
     ) -> None:
         """
         Subscribes to a :class:`SubscriptionType`. Depending on the kind of
         subscription, the value parameter may be required.
         """
-        message: Dict[str, Any] = {"auth-token": self.token, "action": subscription}
+        message: dict[str, Any] = {"auth-token": self.token, "action": subscription}
         if value:
             message["value"] = value
         logger.debug("sending alert subscription: %s", message)
@@ -341,8 +342,8 @@ def __init__(
     ):
         self._counter = 0
         self._lock: Lock = Lock()
-        self._queues: Dict[str, Queue] = defaultdict(Queue)
-        self._channels: Dict[str, int] = {
+        self._queues: dict[str, Queue] = defaultdict(Queue)
+        self._channels: dict[str, int] = {
             "Candle": 1,
             "Greeks": 3,
             "Profile": 5,
@@ -353,7 +354,7 @@ def __init__(
             "Trade": 15,
             "Underlying": 17,
         }
-        self._subscription_state: Dict[str, str] = defaultdict(lambda: "CHANNEL_CLOSED")
+        self._subscription_state: dict[str, str] = defaultdict(lambda: "CHANNEL_CLOSED")
 
         #: The unique client identifier received from the server
         self._session = session
@@ -454,7 +455,7 @@ async def _authenticate_connection(self):
         }
         await self._websocket.send(json.dumps(message))
 
-    async def listen(self, event_class: Type[T]) -> AsyncIterator[T]:
+    async def listen(self, event_class: Type[U]) -> AsyncIterator[U]:
         """
         Using the existing subscriptions, pulls events of the given type and
         yield returns them. Never exits unless there's an error or the channel
@@ -469,7 +470,7 @@ async def listen(self, event_class: Type[T]) -> AsyncIterator[T]:
         while True:
             yield await self._queues[cls_str].get()
 
-    def get_event_nowait(self, event_class: Type[T]) -> Optional[T]:
+    def get_event_nowait(self, event_class: Type[U]) -> Optional[U]:
         """
         Using the existing subscriptions, pulls an event of the given type and
         returns it. If the queue is empty None is returned.
@@ -485,7 +486,7 @@ def get_event_nowait(self, event_class: Type[T]) -> Optional[T]:
         except QueueEmpty:
             return None
 
-    async def get_event(self, event_class: Type[T]) -> T:
+    async def get_event(self, event_class: Type[U]) -> U:
         """
         Using the existing subscription, pulls an event of the given type and
         returns it.
@@ -511,14 +512,13 @@ async def _heartbeat(self) -> None:
             # send the heartbeat every 30 seconds
             await asyncio.sleep(30)
 
-    async def subscribe(self, event_class: Type[EventType], symbols: List[str]) -> None:
+    async def subscribe(self, event_class: Type[EventType], symbols: list[str]) -> None:
         """
         Subscribes to quotes for given list of symbols. Used for recurring data
         feeds.
         For candles, use :meth:`subscribe_candle` instead.
 
-        :param event_class: type of subscription to add, should be of
-        `~tastytrade.streamer.EventType`
+        :param event_class: type of subscription to add, should be of :any:`EventType`
         :param symbols: list of symbols to subscribe for
         """
         cls_str = MAP_EVENTS_REVERSE[event_class]
@@ -585,7 +585,7 @@ def dict_from_schema(event_class: Any):
         await self._websocket.send(json.dumps(message))
 
     async def unsubscribe(
-        self, event_class: Type[EventType], symbols: List[str]
+        self, event_class: Type[EventType], symbols: list[str]
     ) -> None:
         """
         Removes existing subscription for given list of symbols.
@@ -607,7 +607,7 @@ async def unsubscribe(
 
     async def subscribe_candle(
         self,
-        symbols: List[str],
+        symbols: list[str],
         interval: str,
         start_time: datetime,
         end_time: Optional[datetime] = None,
diff --git a/tastytrade/utils.py b/tastytrade/utils.py
index 02286b5..965a59f 100644
--- a/tastytrade/utils.py
+++ b/tastytrade/utils.py
@@ -1,15 +1,15 @@
 from datetime import date, datetime, timedelta
 from decimal import Decimal
 from enum import Enum
-from typing import Any, List, Optional
+from typing import Any, Optional
+from zoneinfo import ZoneInfo
 
 import pandas_market_calendars as mcal  # type: ignore
-import pytz
 from httpx._models import Response
 from pydantic import BaseModel
 
 NYSE = mcal.get_calendar("NYSE")
-TZ = pytz.timezone("US/Eastern")
+TZ = ZoneInfo("US/Eastern")
 
 
 class PriceEffect(str, Enum):
@@ -51,7 +51,7 @@ def is_market_open_on(day: date = today_in_new_york()) -> bool:
     :return: whether the market opens on given day
     """
     date_range = NYSE.valid_days(day, day)
-    return len(date_range) != 0
+    return not date_range.empty
 
 
 def get_third_friday(day: date = today_in_new_york()) -> date:
@@ -261,7 +261,7 @@ def _get_sign(value: Optional[Decimal]) -> Optional[PriceEffect]:
     return PriceEffect.DEBIT if value < 0 else PriceEffect.CREDIT
 
 
-def _set_sign_for(data: Any, properties: List[str]) -> Any:
+def _set_sign_for(data: Any, properties: list[str]) -> Any:
     """
     Handles setting the sign of a number using the associated "-effect" field.
 
diff --git a/tastytrade/watchlists.py b/tastytrade/watchlists.py
index 54626c4..96417a6 100644
--- a/tastytrade/watchlists.py
+++ b/tastytrade/watchlists.py
@@ -1,4 +1,4 @@
-from typing import Any, Dict, List, Optional
+from typing import Any, Optional
 
 from typing_extensions import Self
 
@@ -27,10 +27,10 @@ class PairsWatchlist(TastytradeJsonDataclass):
 
     name: str
     order_index: int
-    pairs_equations: List[Pair]
+    pairs_equations: list[Pair]
 
     @classmethod
-    async def a_get_pairs_watchlists(cls, session: Session) -> List[Self]:
+    async def a_get_pairs_watchlists(cls, session: Session) -> list[Self]:
         """
         Fetches a list of all Tastytrade public pairs watchlists.
 
@@ -40,7 +40,7 @@ async def a_get_pairs_watchlists(cls, session: Session) -> List[Self]:
         return [cls(**i) for i in data["items"]]
 
     @classmethod
-    def get_pairs_watchlists(cls, session: Session) -> List[Self]:
+    def get_pairs_watchlists(cls, session: Session) -> list[Self]:
         """
         Fetches a list of all Tastytrade public pairs watchlists.
 
@@ -79,14 +79,14 @@ class Watchlist(TastytradeJsonDataclass):
     """
 
     name: str
-    watchlist_entries: Optional[List[Dict[str, Any]]] = None
+    watchlist_entries: Optional[list[dict[str, Any]]] = None
     group_name: str = "default"
     order_index: int = 9999
 
     @classmethod
     async def a_get_public_watchlists(
         cls, session: Session, counts_only: bool = False
-    ) -> List[Self]:
+    ) -> list[Self]:
         """
         Fetches a list of all Tastytrade public watchlists.
 
@@ -101,7 +101,7 @@ async def a_get_public_watchlists(
     @classmethod
     def get_public_watchlists(
         cls, session: Session, counts_only: bool = False
-    ) -> List[Self]:
+    ) -> list[Self]:
         """
         Fetches a list of all Tastytrade public watchlists.
 
@@ -134,7 +134,7 @@ def get_public_watchlist(cls, session: Session, name: str) -> Self:
         return cls(**data)
 
     @classmethod
-    async def a_get_private_watchlists(cls, session: Session) -> List[Self]:
+    async def a_get_private_watchlists(cls, session: Session) -> list[Self]:
         """
         Fetches a the user's private watchlists.
 
@@ -144,7 +144,7 @@ async def a_get_private_watchlists(cls, session: Session) -> List[Self]:
         return [cls(**i) for i in data["items"]]
 
     @classmethod
-    def get_private_watchlists(cls, session: Session) -> List[Self]:
+    def get_private_watchlists(cls, session: Session) -> list[Self]:
         """
         Fetches a the user's private watchlists.
 
diff --git a/uv.lock b/uv.lock
index 8e9b5c4..b405720 100644
--- a/uv.lock
+++ b/uv.lock
@@ -586,7 +586,7 @@ wheels = [
 
 [[package]]
 name = "tastytrade"
-version = "9.1"
+version = "9.2"
 source = { editable = "." }
 dependencies = [
     { name = "httpx" },
@@ -602,7 +602,6 @@ dev = [
     { name = "pytest-aio" },
     { name = "pytest-cov" },
     { name = "ruff" },
-    { name = "types-pytz" },
 ]
 
 [package.metadata]
@@ -620,7 +619,6 @@ dev = [
     { name = "pytest-aio", specifier = ">=1.5.0" },
     { name = "pytest-cov", specifier = ">=5.0.0" },
     { name = "ruff", specifier = ">=0.6.9" },
-    { name = "types-pytz", specifier = ">=2024.2.0.20241003" },
 ]
 
 [[package]]
@@ -641,15 +639,6 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/03/98/eb27cc78ad3af8e302c9d8ff4977f5026676e130d28dd7578132a457170c/toolz-1.0.0-py3-none-any.whl", hash = "sha256:292c8f1c4e7516bf9086f8850935c799a874039c8bcf959d47b600e4c44a6236", size = 56383 },
 ]
 
-[[package]]
-name = "types-pytz"
-version = "2024.2.0.20241003"
-source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/66/d0/73aa3063a9ef9881bd7103cb4ae379bfd8fafda0e86b01b694d676313a4b/types-pytz-2024.2.0.20241003.tar.gz", hash = "sha256:575dc38f385a922a212bac00a7d6d2e16e141132a3c955078f4a4fd13ed6cb44", size = 5474 }
-wheels = [
-    { url = "https://files.pythonhosted.org/packages/86/60/2a2977ce0f91255bbb668350b127a801a06ad37c326a2e5bfd52f03e0784/types_pytz-2024.2.0.20241003-py3-none-any.whl", hash = "sha256:3e22df1336c0c6ad1d29163c8fda82736909eb977281cb823c57f8bae07118b7", size = 5245 },
-]
-
 [[package]]
 name = "typing-extensions"
 version = "4.12.2"