diff --git a/.github/workflows/gh-pages.yml b/.github/workflows/gh-pages.yml
index 39bf204..c5e72c1 100644
--- a/.github/workflows/gh-pages.yml
+++ b/.github/workflows/gh-pages.yml
@@ -26,7 +26,7 @@ jobs:
         run: mdbook build
 
       - name: Deploy
-        uses: peaceiris/actions-gh-pages@v3.9.0
+        uses: peaceiris/actions-gh-pages@v3.9.3
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: ./book/book