diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index f45d5c6..0779eef 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -2,10 +2,10 @@ name: Tests
 on:
   push:
     branches:
-      - '*'
+      - "*"
   pull_request:
     branches:
-      - '*'
+      - "*"
 jobs:
   tests:
     name: ${{ matrix.name }}
diff --git a/pyproject.toml b/pyproject.toml
index 4b511dc..85cdc61 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,7 @@
 [build-system]
-build-backend = "flit_core.buildapi"
-requires = ["flit_core >=3.5,<4"]
+build-backend = "hatchling.build"
+requires = ["hatchling"]
+
 
 [project]
 authors = [
@@ -34,12 +35,9 @@ dependencies = [
 [project.optional-dependencies]
 dev = [
   "black",
-  "isort",
   "mypy",
   "pandas-stubs",
-  "pip-tools",
   "pre-commit",
-  "pylint",
   "pytest",
   "pytest-cov",
   "ruff",
@@ -49,6 +47,9 @@ dev = [
 [tool.flit.module]
 name = "pte_stats"
 
+[tool.hatch.version]
+path = "src/pte_stats/__init__.py"
+
 [project.urls]
 bugtracker = "https://github.com/richardkoehler/pte-stats/issues"
 changelog = "https://github.com/richardkoehler/pte-stats/blob/main/doc/CHANGELOG.md"
diff --git a/requirements/requirements.in b/requirements/requirements.in
deleted file mode 100644
index 101aab6..0000000
--- a/requirements/requirements.in
+++ /dev/null
@@ -1,4 +0,0 @@
-  numba
-  numpy
-  scikit-image
-  statsmodels
diff --git a/requirements/requirements_deploy.in b/requirements/requirements_deploy.in
deleted file mode 100644
index 7585f75..0000000
--- a/requirements/requirements_deploy.in
+++ /dev/null
@@ -1,3 +0,0 @@
--c requirements.txt
--c requirements_dev.txt
-flit
diff --git a/requirements/requirements_dev.in b/requirements/requirements_dev.in
deleted file mode 100644
index 045b963..0000000
--- a/requirements/requirements_dev.in
+++ /dev/null
@@ -1,9 +0,0 @@
--c requirements.txt
-black
-isort
-mypy
-pip-tools
-pylint
-pytest
-pytest-cov
-tox
diff --git a/src/pte_stats/__init__.py b/src/pte_stats/__init__.py
index 655b7f8..5200890 100644
--- a/src/pte_stats/__init__.py
+++ b/src/pte_stats/__init__.py
@@ -1,6 +1,6 @@
 """An open-source software package for statistics with time series. """
 
-__version__ = "0.3.0.dev1"
+__version__ = "0.3.0"
 
 from .cluster import (
     cluster_analysis_1d,