diff --git a/.github/workflows/python-testing.yml b/.github/workflows/python-testing.yml
new file mode 100644
index 0000000..7d58025
--- /dev/null
+++ b/.github/workflows/python-testing.yml
@@ -0,0 +1,37 @@
+name: Python tests
+
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    branches: ["main"]
+
+jobs:
+  build:
+    runs-on: macos-14
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.10", "3.11", "3.12"]
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v3
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install poetry
+        run: pipx install poetry
+      - name: Install dependencies
+        run: |
+          brew install cairo
+          poetry env use python${{ matrix.python-version }}
+          poetry install
+      - name: Lint with flake8
+        run: |
+          poetry run flake8
+      - name: Lint with black
+        run: poetry run black --check .
+      - name: Test with pytest
+        run: |
+          poetry run pytest
diff --git a/mapsy/icon/icon.py b/mapsy/icon/icon.py
index 285374e..4bd26c7 100644
--- a/mapsy/icon/icon.py
+++ b/mapsy/icon/icon.py
@@ -1,5 +1,4 @@
 from dataclasses import dataclass
-import os
 from pathlib import Path
 
 from mapsy.common import IconAlign
diff --git a/test/util.py b/test/util.py
index 6f4cba6..298e9ab 100644
--- a/test/util.py
+++ b/test/util.py
@@ -1,4 +1,3 @@
-import pytest
 import mapsy
 from contextlib import contextmanager
 from os import path