diff --git a/.github/workflows/sphinx_build_deploy.yml b/.github/workflows/sphinx_build_deploy.yml
index a5f35a3..a5f52cb 100644
--- a/.github/workflows/sphinx_build_deploy.yml
+++ b/.github/workflows/sphinx_build_deploy.yml
@@ -51,7 +51,7 @@ jobs:
           make html
 
       - name: Deploy to gh-pages
-        uses: peaceiris/actions-gh-pages@v3
+        uses: peaceiris/actions-gh-pages@v4
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: ./docs/build/html