diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 7a280e1..1109f84 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -12,6 +12,7 @@ jobs:
       matrix:
         os: [ ubuntu-latest, macos-latest, windows-latest ]
         ruby:
+          - "3.4"
           - "3.3"
           - "3.2"
           - "3.1"