diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 312a472..54dedaf 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -9,7 +9,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu, macos]
-        ruby: [3.2, 3.3]
+        ruby: [3.2, 3.3, 3.4]
 
     steps:
       - uses: actions/checkout@v4