diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index dae4c80..7ec0dfd 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -12,13 +12,13 @@ on:
     branches: [ master ]
   pull_request:
     branches: [ master ]
-    
+
 jobs:
   test:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby-version: ['3.0', '3.1', '3.2', '3.3', 'truffleruby', 'jruby']
+        ruby-version: ['3.0', '3.1', '3.2', '3.3', '3.4', 'truffleruby', 'jruby']
 
     steps:
     - uses: actions/checkout@v4