diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e076b33..08e6af9 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,7 +22,7 @@ jobs:
 
     strategy:
       matrix:
-        ruby: [2.5, 2.6, 2.7, 3]
+        ruby: [2.7, 3]
 
     steps:
       - name: Checkout