diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index 57d0845..754051e 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -22,10 +22,12 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby-version: ['3.1', '3.2', '3.3']
+        ruby-version: ['3.1', '3.2', '3.3', '3.4']
 
     steps:
     - uses: actions/checkout@v3
+    - name: Remove lockfile
+      run: rm Gemfile.lock
     - name: Set up Ruby
       uses: ruby/setup-ruby@v1
       with: