diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index 8876c31..f6c4f66 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -29,6 +29,7 @@ jobs:
           - 2.6
           - 2.7
           - '3.0'  # Due to https://github.com/actions/runner/issues/849, we have to use quotes for '3.0'
+          - 3.1
     env:
       BUNDLE_GEMFILE: ${{ matrix.gemfile }}
     steps: