diff --git a/.github/workflows/book.yml b/.github/workflows/book.yml
index e9199042e..e48b656a5 100644
--- a/.github/workflows/book.yml
+++ b/.github/workflows/book.yml
@@ -30,7 +30,7 @@ jobs:
 
     - if: ${{ github.event_name == 'push' }}
       name: GitHub Pages action
-      uses: peaceiris/actions-gh-pages@v3.9.1
+      uses: peaceiris/actions-gh-pages@v3.9.2
       with:
         github_token: ${{ secrets.GITHUB_TOKEN }}
         publish_dir: docs/_build/html