diff --git a/.github/workflows/deploy_documentation.yml b/.github/workflows/deploy_documentation.yml
index 3ed14221..626c10a4 100644
--- a/.github/workflows/deploy_documentation.yml
+++ b/.github/workflows/deploy_documentation.yml
@@ -21,7 +21,7 @@ jobs:
 
       - name: Deploy documentation
         if: ${{ github.event_name == 'branches' }}
-        uses: peaceiris/actions-gh-pages@v3
+        uses: peaceiris/actions-gh-pages@v4
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: ./target/doc