diff --git a/.github/workflows/run-checks.yml b/.github/workflows/run-checks.yml
index 98a617c..dd9a53c 100644
--- a/.github/workflows/run-checks.yml
+++ b/.github/workflows/run-checks.yml
@@ -14,13 +14,18 @@ on:
 
 jobs:
   tox:
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-14]
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
         with:
-          python-version: 3.9
-      - name: Install tox
-        run: pip install tox-uv
+          python-version: 3.11
+      - name: Install uv
+        uses: astral-sh/setup-uv@v2
       - name: Run tox
-        run: tox -e py
+        run: |
+          uv run --with pytest --with pytest-cookies --with tox-uv pytest