diff --git a/.github/workflows/pytest.yml b/.github/workflows/pytest.yml
new file mode 100644
index 0000000..c1cb45a
--- /dev/null
+++ b/.github/workflows/pytest.yml
@@ -0,0 +1,21 @@
+name: pytest
+on:
+  push:
+  pull_request:
+  workflow_dispatch:
+jobs:
+  pytest:
+    strategy:
+      fail-fast: false
+      matrix:  # https://github.com/actions/python-versions/releases
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13", "pypy-3.10"]
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+      - run: pip install --upgrade pip wheel
+      - run: pip install aiofiles asynctempfile pytest
+      - run: pip install --editable .
+      - run: pytest