diff --git a/.github/workflows/documentation.yaml b/.github/workflows/documentation.yaml
index d5f64945..506dd1a2 100644
--- a/.github/workflows/documentation.yaml
+++ b/.github/workflows/documentation.yaml
@@ -10,7 +10,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.9'
       - name: Install dependencies
         run: |
           pip install -r docs/.docs.requirements