diff --git a/.github/workflows/github_pages.yml b/.github/workflows/github_pages.yml
index b212c2d885..5f586d9926 100644
--- a/.github/workflows/github_pages.yml
+++ b/.github/workflows/github_pages.yml
@@ -30,7 +30,7 @@ jobs:
 
       - name: Deploy main
         if: github.event_name == 'push' || github.event_name == 'workflow_dispatch'
-        uses: peaceiris/actions-gh-pages@v3
+        uses: peaceiris/actions-gh-pages@v4
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: ./specs/book