diff --git a/.github/workflows/publish-to-github-pages.yml b/.github/workflows/publish-to-github-pages.yml
index aa3017c8..1d6b9648 100644
--- a/.github/workflows/publish-to-github-pages.yml
+++ b/.github/workflows/publish-to-github-pages.yml
@@ -15,7 +15,7 @@ jobs:
           bundler-cache: true
       - run: bundle exec rake yard
       - name: Deploy
-        uses: peaceiris/actions-gh-pages@v3
+        uses: peaceiris/actions-gh-pages@v4
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: ./doc