diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 36812ece..8084a412 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -9,6 +9,7 @@ jobs:
     strategy:
       matrix:
         ruby-version:
+          - '3.3'
           - '3.2'
           - '3.1'
           - '3.0'