diff --git a/ci/.github/workflows/ci.yml b/ci/.github/workflows/ci.yml
index 4e3f5cf..1ee3268 100644
--- a/ci/.github/workflows/ci.yml
+++ b/ci/.github/workflows/ci.yml
@@ -38,6 +38,7 @@ jobs:
     strategy:
       matrix:
         ruby:
+          - '3.3'
           - '3.2'
           - '3.1'
           - '3.0'