diff --git a/.github/workflows/doc.yml b/.github/workflows/doc.yml
index 23c2aa7..521f095 100644
--- a/.github/workflows/doc.yml
+++ b/.github/workflows/doc.yml
@@ -7,7 +7,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - uses: actions/setup-python@v3
+      - name: Set up Python 3.8.12
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.8.12"
       - name: Install dependencies
         run: |
           pip install -r docs/requirements.txt