diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7d56730..54bfae1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -39,4 +39,5 @@ jobs:
         with:
           ruby-version: ${{matrix.ruby}}
           bundler-cache: true
+          rubygems: "3.0.0"
       - run: bundle exec rake test