diff --git a/.github/workflows/gh-pages.yml b/.github/workflows/gh-pages.yml
index 1d70fe5..e7ee429 100644
--- a/.github/workflows/gh-pages.yml
+++ b/.github/workflows/gh-pages.yml
@@ -21,9 +21,9 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
       - name: Setup Ruby
-        uses: ruby/setup-ruby@250fcd6a742febb1123a77a841497ccaa8b9e939 # v1.152.0
+        uses: ruby/setup-ruby@32110d4e311bd8996b2a82bf2a43b714ccc91777 # v1.221.0
         with:
-          ruby-version: '3.3'
+          ruby-version: '3.4'
           bundler-cache: true
       - name: Setup Pages
         id: pages