diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9769321..4ad3d57 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,7 +7,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest]
-        ruby: ['2.6', '2.7', '3.0', '3.1', head, truffleruby, truffleruby-head]
+        ruby: ['3.0', '3.1', head, truffleruby, truffleruby-head]
     runs-on: ${{ matrix.os }}
     continue-on-error: true
     steps: