diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 138ee43..d9b8e49 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby-version: ['3.1', '3.2', '3.3']
+        ruby-version: ['3.1', '3.2', '3.3', '3.4']
 
     steps:
       - uses: actions/checkout@v4