diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9849255..8c6104b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,7 +11,7 @@ jobs:
     continue-on-error: true
     strategy:
       matrix:
-        ruby: [ "3.3", "3.2", "3.1" ]
+        ruby: [ "3.4", "3.3", "3.2", "3.1" ]
         rails: [ "8.0", "7.1", "7.0", "6.1" ]
         # Rails 8 needs Ruby 3.2 or higher
         exclude: