diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2d3e58e..83e8056 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -29,6 +29,7 @@ jobs:
     strategy:
       matrix:
         ruby:
+          - '3.4'
           - '3.3'
           - '3.2'
           - '3.1'