diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 690dcdb..40f16fa 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -10,7 +10,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby-version: [3.2, 3.3]
+        ruby-version: [3.2, 3.3, 3.4]
     steps:
       - uses: actions/checkout@v4
         with: