diff --git a/.github/workflows/actions.yml b/.github/workflows/actions.yml
index 69f0f3d..6d78b2f 100644
--- a/.github/workflows/actions.yml
+++ b/.github/workflows/actions.yml
@@ -18,6 +18,7 @@ jobs:
           - "3.0"
           - "3.1"
           - "3.2"
+          - "3.3"
           - jruby-9.4
           - jruby-head
     steps: