diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b7c83d2..6b90ace 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,6 +13,7 @@ jobs:
       fail-fast: false
       matrix:
         ruby:
+          - "3.4"
           - "3.3"
           - "3.2"
           - "3.1"