diff --git a/.github/workflows/doc.yml b/.github/workflows/doc.yml
index 93fc78d..a88d68f 100644
--- a/.github/workflows/doc.yml
+++ b/.github/workflows/doc.yml
@@ -28,7 +28,7 @@ jobs:
       - run: sudo ./docs/build.sh
       # Deployments
       - name: Deploy Docs
-        uses: peaceiris/actions-gh-pages@v3
+        uses: peaceiris/actions-gh-pages@v4
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_branch: gh-pages