diff --git a/.github/workflows/pages-deploy.yml b/.github/workflows/pages-deploy.yml
index 436e603..f42c0a3 100644
--- a/.github/workflows/pages-deploy.yml
+++ b/.github/workflows/pages-deploy.yml
@@ -42,7 +42,7 @@ jobs:
       - name: Setup Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 3.3
+          ruby-version: 4.0.1
           bundler-cache: true
 
       - name: Build site