diff --git a/.github/workflows/publish-docs.yml b/.github/workflows/publish-docs.yml
index ac4092ac..b406ba5c 100644
--- a/.github/workflows/publish-docs.yml
+++ b/.github/workflows/publish-docs.yml
@@ -45,7 +45,7 @@ jobs:
         run: ./deploy_website.sh --ci
 
       - name: Deploy site
-        uses: peaceiris/actions-gh-pages@v3
+        uses: peaceiris/actions-gh-pages@v4
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: ./site