diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index cc5ee0d18..eee61f3d5 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -21,8 +21,9 @@ jobs:
 
     runs-on: ubuntu-latest
     strategy:
+      fail-fast: false
       matrix:
-        ruby-version: ['3.1', '3.2', '3.3', '3.4', 'jruby-9.4', 'jruby-10.0']
+        ruby-version: ['3.1', '3.2', '3.3', '3.4', '4.0', 'head', 'jruby-9.4', 'jruby-10.0']
 
     steps:
     - name: Set up Java for JRuby 10.0