diff --git a/.github/workflows/publish_docs.yaml b/.github/workflows/publish_docs.yaml
index 49c195be..84b111d2 100644
--- a/.github/workflows/publish_docs.yaml
+++ b/.github/workflows/publish_docs.yaml
@@ -42,7 +42,7 @@ jobs:
 
       - name: Deploy
         if: ${{ github.ref == 'refs/heads/main' }}
-        uses: peaceiris/actions-gh-pages@v3
+        uses: peaceiris/actions-gh-pages@v4
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: ./docs/_build/html