diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 341b793..c56016a 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -10,6 +10,7 @@ jobs:
           - '3.1'
           - '3.2'
           - '3.3'
+          - '3.4'
           - ruby
           - ruby-head
           - truffleruby-head