diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 79bcdba..ce269e6 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -10,6 +10,10 @@ jobs:
 
     runs-on: ubuntu-latest
 
+    strategy:
+      matrix:
+        ruby-version: ['3.1', '3.0', '2.7']
+
     steps:
       - uses: actions/checkout@v3
       - name: Set up Ruby