diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b98af94..b8b49a6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,11 +23,11 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest]
-
+        ruby: ['2.7', '3.0', '3.1', '3.2', head]
     steps:
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: '2.6.x'
+          ruby-version: ${{ matrix.ruby }}
 
       - name: Checkout
         uses: actions/checkout@v2