diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index cd39592905..056398d491 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -36,7 +36,7 @@ jobs:
         - name: Remove Closure App
           run: rm -rf gh-pages/closure-library/scripts/ci/CloseAdobeDialog.exe
         - name: Deploy playground to GitHub Pages
-          uses: peaceiris/actions-gh-pages@373f7f263a76c20808c831209c920827a82a2847 # v3
+          uses: peaceiris/actions-gh-pages@4f9cc6602d3f66b9c108549d475ec49e8ef4d45e # v4
           with:
             github_token: ${{ secrets.GITHUB_TOKEN }}
             publish_dir: ./gh-pages