diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index d75246a2f..4cfc0e184 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -49,7 +49,7 @@ jobs:
         run: mdbook build --dest-dir ./book/$(basename ${GITHUB_REF})
 
       - name: Deploy
-        uses: peaceiris/actions-gh-pages@v3.9.3
+        uses: peaceiris/actions-gh-pages@v4.0.0
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: ./book
diff --git a/.github/workflows/update.yml b/.github/workflows/update.yml
index 7957179b7..5c9d17753 100644
--- a/.github/workflows/update.yml
+++ b/.github/workflows/update.yml
@@ -22,7 +22,7 @@ jobs:
         run: mdbook build
 
       - name: Deploy
-        uses: peaceiris/actions-gh-pages@v3.9.3
+        uses: peaceiris/actions-gh-pages@v4.0.0
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: ./book