diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 92ee7435..6f90e74e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -24,6 +24,7 @@ jobs:
           - '3.0'
           - '3.1'
           - '3.2'
+          - '3.3'
           - debug
           - jruby
           - truffleruby