diff --git a/.github/workflows/Test.yml b/.github/workflows/Test.yml
index 760bdec..aa8bbcd 100644
--- a/.github/workflows/Test.yml
+++ b/.github/workflows/Test.yml
@@ -31,7 +31,7 @@ jobs:
           sphinx-build -b html doc doc/_build/html
 
       - name: '⬆️ Deploy to gh-pages'
-        uses: peaceiris/actions-gh-pages@v6
+        uses: peaceiris/actions-gh-pages@v4
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: doc/_build/html