diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0013b16e5..0b169b2bb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -82,7 +82,7 @@ jobs:
       - name: Generate Website
         run: sbt doc
       - name: Deploy Website
-        uses: peaceiris/actions-gh-pages@v3
+        uses: peaceiris/actions-gh-pages@v4
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: generated-docs/