diff --git a/.github/workflows/test-ruby.yml b/.github/workflows/test-ruby.yml
index 327ebc2db..4750e2a1e 100644
--- a/.github/workflows/test-ruby.yml
+++ b/.github/workflows/test-ruby.yml
@@ -313,6 +313,7 @@ jobs:
           - '3.0'
           - '3.1'
           - '.ruby-version'
+          - '3.3'
 
     steps:
       - uses: actions/checkout@v4