diff --git a/.github/workflows/gh-pages.yml b/.github/workflows/gh-pages.yml
index c9f6bc4..0d98ad6 100644
--- a/.github/workflows/gh-pages.yml
+++ b/.github/workflows/gh-pages.yml
@@ -14,7 +14,7 @@ jobs:
           fetch-depth: 0
 
       - name: Deploy
-        uses: peaceiris/actions-gh-pages@v3.9.3
+        uses: peaceiris/actions-gh-pages@v4.0.0
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: ./docs