diff --git a/.github/workflows/publish_docs.yml b/.github/workflows/publish_docs.yml
index b201113..08ab451 100644
--- a/.github/workflows/publish_docs.yml
+++ b/.github/workflows/publish_docs.yml
@@ -34,7 +34,7 @@ jobs:
 
             - name: Deploy
               if: ${{ github.ref == 'refs/heads/master' || github.ref == 'refs/heads/main'}}
-              uses: peaceiris/actions-gh-pages@v3.8.0
+              uses: peaceiris/actions-gh-pages@v4.0.0
               with:
                   github_token: ${{ secrets.GITHUB_TOKEN }}
                   publish_dir: ./docs/_build/html