diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0236398e7..e1557e2ee 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,7 +11,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: [ "2.6", "2.7", "3.0" ]
+        ruby: [ "2.6", "2.7", "3.0", "3.1" ]
     name: Ruby ${{ matrix.ruby }}
     steps:
       - uses: actions/checkout@v2