diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9bdc1cb4..807af98e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,6 +22,7 @@ jobs:
         - ubuntu-latest
         - ubuntu-20.04
         ruby:
+        - 3.4
         - 3.3
         - 3.2
         - 3.1