diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index c34af7b..4818369 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -16,6 +16,7 @@ jobs:
       fail-fast: false
       matrix:
         ruby-version:
+          - 3.4
           - 3.3
           - 3.2
           - 3.1