diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f0c7b9e..c9d2e16 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: ["3.1", "3.2", "3.3"]
+        ruby: ["3.1", "3.2", "3.3", "3.4"]
 
     steps:
       - name: Checkout