diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 0d9600d..2a94081 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -27,7 +27,7 @@ jobs:
       - name: Confirm output
         run: ls ./out
       - name: Deploy
-        uses: peaceiris/actions-gh-pages
+        uses: peaceiris/actions-gh-pages@v4
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: ./out