diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..1e43392
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,39 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  build-venv:
+    name: Python virtual environment
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+
+    - name: Set up Python
+      uses: actions/setup-python@v4
+      with:
+        python-version: '3.12'
+
+    - name: Set up environment
+      run: |
+        python -m venv venv
+        source venv/bin/activate
+
+    - name: Install dependencies
+      run: |
+        source venv/bin/activate
+        python -m pip install --upgrade pip
+        pip install ./
+
+    - name: Run tests
+      run: |
+        source venv/bin/activate
+        python -m pytest tests/