diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0b0b5dc..3a9483d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -93,7 +93,7 @@ jobs:
           path: docs/_build/html
       - name: Deploy Docs
         if: github.event_name == 'push' && github.event.ref == 'refs/heads/master'
-        uses: peaceiris/actions-gh-pages@v3
+        uses: peaceiris/actions-gh-pages@v3.8.0
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: ./docs/_build/html