diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 5032980d..b28bb013 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -11,6 +11,7 @@ jobs:
       matrix:
         ruby-version:
           - head
+          - '3.3'
           - '3.2'
           - '3.1'
           - '3.0'