diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index a67d92c6..9609d19e 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -18,6 +18,7 @@ jobs:
           - "3.1"
           - "3.2"
           - "3.3"
+          - "3.4"
     steps:
       - uses: actions/checkout@v4
       - uses: ruby/setup-ruby@v1