diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8d43cee9..2530e811 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -283,7 +283,7 @@ jobs:
         run: cargo doc --no-deps --all-features
 
       - 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: ./target/doc