diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index 482b795..c5a2882 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -30,6 +30,7 @@ jobs:
       uses: ruby/setup-ruby@v1
       with:
         ruby-version: ${{ matrix.ruby-version }}
+        rubygems: 3.2.3
         bundler-cache: true # runs 'bundle install' and caches installed gems automatically
     - name: Run Style Check
       run: bundle exec rake style