diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index d2dd72d..ace3130 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -16,6 +16,7 @@ jobs:
       fail-fast: false
       matrix:
         ruby:
+          - "3.3"
           - "3.2"
           - "3.1"
           - "3.0"