diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
new file mode 100644
index 0000000..3d5d6d2
--- /dev/null
+++ b/.github/workflows/lint.yml
@@ -0,0 +1,25 @@
+name: Lint
+on: [push, pull_request]
+jobs:
+  lint:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+        python-version: ["3.10", "3.11"]
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v3
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r requirements_dev.txt
+      - name: Analysing the code with mypy
+        run: |
+          mypy $(git ls-files '*.py')
+      - name: Analysing the code with ruff
+        run: |
+          ruff check $(git ls-files '*.py')
diff --git a/pyproject.toml b/pyproject.toml
index 905b468..f7ae139 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,19 +11,19 @@ readme = "README.md"
 requires-python = ">=3.11"
 license = { file = "LICENSE" }
 dependencies = [
-  "attrs==23.1.0",
-  "loguru==0.7.2",
-  "numpy==1.26.3",
-  "pygame-ce==2.4.0",
-  "toml==0.10.2",
+    "attrs==23.1.0",
+    "loguru==0.7.2",
+    "numpy==1.26.3",
+    "pygame-ce==2.4.0",
+    "toml==0.10.2",
 ]
 keywords = ["tetris", "game", "pygame"]
 classifiers = [
-  "Development Status :: 3 - Alpha",
-  "License :: OSI Approved :: GPLv3 License",
-  "Programming Language :: Python :: 3 :: Only",
-  "Programming Language :: Python :: 3.11",
-  "Programming Language :: Python :: 3.12",
+    "Development Status :: 3 - Alpha",
+    "License :: OSI Approved :: GPLv3 License",
+    "Programming Language :: Python :: 3 :: Only",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
 ]
 
 [project.urls]
@@ -45,40 +45,41 @@ warn_unused_configs = true
 
 [tool.ruff]
 extend-select = [
-  "B",
-  "BLE",
-  "C4",
-  "ERA",
-  "I",
-  "ICN",
-  "INP",
-  "ISC",
-  "N",
-  "NPY",
-  "PGH",
-  "PIE",
-  # "PTH",
-  "Q",
-  "RET",
-  "RSE",
-  "RUF",
-  "S",
-  "SIM",
-  "T20",
-  "TCH",
-  "TID",
-  "YTT",
+    "B",
+    "BLE",
+    "C4",
+    "ERA",
+    "I",
+    "ICN",
+    "INP",
+    "ISC",
+    "N",
+    "NPY",
+    "PGH",
+    "PIE",
+    # "PTH",
+    "Q",
+    "RET",
+    "RSE",
+    "RUF",
+    "S",
+    "SIM",
+    "T20",
+    "TCH",
+    "TID",
+    "YTT",
 ]
 ignore = ["E741"]
 show-fixes = true
 line-length = 120
 indent-width = 4
-target-version = "py38"
+target-version = "py310"
 
 
 [tool.ruff.lint]
 extend-select = ["I"]
 preview = true
+fixable = ["ALL"]
 
 [tool.ruff.format]
 quote-style = "double"
diff --git a/requirements_dev.txt b/requirements_dev.txt
index f3bc67b..fa4853f 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,3 +1,4 @@
 mypy==1.8.0
 pytest==7.4.3
 ruff==0.1.9
+types-toml==0.10.8.7
diff --git a/src/game/screens/tetris.py b/src/game/screens/tetris.py
index 40b5d63..5764d21 100644
--- a/src/game/screens/tetris.py
+++ b/src/game/screens/tetris.py
@@ -355,10 +355,10 @@ class Tetris(BaseScreen):
     def _initialize_timers(self) -> None:
         """Initialize game timers."""
         self.timers = Timers(
-            Timer(self.initial_block_speed, True, self.move_down),
-            Timer(CONFIG.game.movment_delay),
-            Timer(CONFIG.game.rotation_delay),
-            Timer(CONFIG.game.drop_delay),
+            Timer(self.initial_block_speed, True, self.move_down),  # type: ignore
+            Timer(CONFIG.game.movment_delay),  # type: ignore
+            Timer(CONFIG.game.rotation_delay),  # type: ignore
+            Timer(CONFIG.game.drop_delay),  # type: ignore
         )
         self.timers.vertical.activate()
 
diff --git a/tetris/__main__.py b/tetris/__main__.py
index a47c87b..6152b49 100755
--- a/tetris/__main__.py
+++ b/tetris/__main__.py
@@ -57,10 +57,10 @@ def run() -> None:
     game.Main(GameMode.PLAYER).run()
 
 
-def main(args: argparse.ArgumentParser) -> None:
-    if args.debug:
+def main(args) -> None:
+    if args.debug:  # type: ignore
         level = "debug"
-    elif args.verbose:
+    elif args.verbose:  # type: ignore
         level = "info"
     else:
         level = "warning"
@@ -72,4 +72,4 @@ def main(args: argparse.ArgumentParser) -> None:
 
 if __name__ == "__main__":
     args = parser.parse_args()
-    main(args)
+    main(args)  # type: ignore