diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index cf1b442..1212238 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -12,6 +12,7 @@ jobs:
           - '3.0'
           - '3.1'
           - '3.2'
+          - '3.3'
           - truffleruby
     name: Ruby ${{ matrix.ruby }}
     steps: