diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 42ef982..f7b60a8 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -38,7 +38,7 @@ jobs:
       # when building on push to main, publish the compiled documentation
       - name: Deploy built docs to github pages
         if: ${{ github.event_name == 'push' }}
-        uses: peaceiris/actions-gh-pages@v3
+        uses: peaceiris/actions-gh-pages@v4
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: ./site