diff --git a/.github/workflows/checks.yaml b/.github/workflows/checks.yaml
index 4cfebd86..5ed986b8 100644
--- a/.github/workflows/checks.yaml
+++ b/.github/workflows/checks.yaml
@@ -13,6 +13,8 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     - uses: actions/setup-python@v5
+      with:
+        python-version: '3.11'
     - name: set PY
       run: echo "PY=$(python -VV | sha256sum | cut -d' ' -f1)" >> $GITHUB_ENV
     - uses: actions/cache@v4