diff --git a/.github/workflows/github-pages.yml b/.github/workflows/github-pages.yml
index 593a0ed..73789af 100644
--- a/.github/workflows/github-pages.yml
+++ b/.github/workflows/github-pages.yml
@@ -16,7 +16,7 @@ jobs:
       - name: Setup Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: '3.3'
+          ruby-version: '3.1'
           bundler-cache: true
 
       - name: Install dependencies