diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e69fdcc..e0daa86 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -26,6 +26,7 @@ jobs:
       fail-fast: false
       matrix:
         ruby:
+        - "3.3"
         - "3.2"
         - "3.1"
         - "3.0"