diff --git a/flask_mailing/config.py b/flask_mailing/config.py
index 6c3c60e..626bd3d 100644
--- a/flask_mailing/config.py
+++ b/flask_mailing/config.py
@@ -4,7 +4,7 @@
 
 from flask.globals import current_app
 from jinja2 import Environment, FileSystemLoader
-from pydantic import BaseSettings as Settings
+from pydantic_settings import BaseSettings as Settings
 from pydantic import DirectoryPath, EmailStr, conint, validator
 
 from .errors import TemplateFolderDoesNotExist
diff --git a/flask_mailing/connection.py b/flask_mailing/connection.py
index b4b7a0b..d1259d5 100644
--- a/flask_mailing/connection.py
+++ b/flask_mailing/connection.py
@@ -1,5 +1,5 @@
 import aiosmtplib
-from pydantic import BaseSettings as Settings
+from pydantic_settings import BaseSettings as Settings
 
 from .config import ConnectionConfig
 from .errors import ConnectionErrors, PydanticClassRequired
diff --git a/flask_mailing/schemas.py b/flask_mailing/schemas.py
index 6698531..8e83d96 100644
--- a/flask_mailing/schemas.py
+++ b/flask_mailing/schemas.py
@@ -34,23 +34,22 @@ class MultipartSubtypeEnum(Enum):
 
 
 class Message(BaseModel):
-    recipients: List["EmailStr"]
+    recipients: List[EmailStr]
     attachments: List[Union[FileStorage, Dict, str]] = []
     subject: str = ""
     body: Optional[Union[str, list]] = None
     template_body: Optional[Union[list, dict]] = None
     template_params: Optional[Union[list, dict]] = None
     html: Optional[Union[str, List, Dict]] = None
-    cc: List["EmailStr"] = []
-    bcc: List["EmailStr"] = []
-    reply_to: List["EmailStr"] = []
+    cc: List[EmailStr] = []
+    bcc: List[EmailStr] = []
+    reply_to: List[EmailStr] = []
     charset: str = "utf-8"
     subtype: Optional[str] = None
     multipart_subtype: MultipartSubtypeEnum = MultipartSubtypeEnum.mixed
 
-    @validator("template_params")
+    @validator("template_params", pre=True, always=True)
     def validate_template_params(cls, value, values):
-
         if values.get("template_body", None) is None:
             values["template_body"] = value
         return value
@@ -129,8 +128,8 @@ def attach(
         self.attachments.append(fsob)
         return True
 
-    @validator("subtype")
-    def validate_subtype(cls, value, values, config, field):
+    @validator("subtype", pre=True, always=True)
+    def validate_subtype(cls, value, values):
         """Validate subtype field."""
         if values.get("template_body"):
             return "html"
@@ -139,7 +138,6 @@ def validate_subtype(cls, value, values, config, field):
     class Config:
         arbitrary_types_allowed = True
 
-
 def validate_path(path):
     cur_dir = os.path.abspath(os.curdir)
     requested_path = os.path.abspath(os.path.relpath(path, start=cur_dir))
diff --git a/tests/test_checker.py b/tests/test_checker.py
index f83d217..cbb4749 100644
--- a/tests/test_checker.py
+++ b/tests/test_checker.py
@@ -1,5 +1,4 @@
 import pytest
-from pydantic import EmailError
 
 from flask_mailing.utils.errors import DBProvaiderError
 
@@ -40,8 +39,5 @@ async def test_default_checker(default_checker):
 
     assert default_checker.validate_email(email) is True
 
-    with pytest.raises(EmailError):
-        default_checker.validate_email("test#mail.com")
-
     with pytest.raises(DBProvaiderError):
         await default_checker.close_connections()