diff --git a/.github/workflows/publish_docs.yml b/.github/workflows/publish_docs.yml
index 5e9bca1..5f6d022 100644
--- a/.github/workflows/publish_docs.yml
+++ b/.github/workflows/publish_docs.yml
@@ -30,7 +30,7 @@ jobs:
         poetry run sphinx-build -b html docs/source docs/build/html
 
     - name: Deploy to GitHub Pages
-      uses: peaceiris/actions-gh-pages@v3
+      uses: peaceiris/actions-gh-pages@v4
       with:
         github_token: ${{ secrets.GITHUB_TOKEN }}
         publish_dir: ./docs/build/html