diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 955d9a5..405eacb 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -56,6 +56,8 @@ jobs:
           gemfile: rails_4.2_mongoid_5
         - ruby: truffleruby
           gemfile: rails_5.2
+        - ruby: truffleruby
+          gemfile: rails_6.1
         allow_failures:
           - false
     env:
diff --git a/spec/spec_helpers/mongoid.rb b/spec/spec_helpers/mongoid.rb
index 2ff478c..56f9fca 100644
--- a/spec/spec_helpers/mongoid.rb
+++ b/spec/spec_helpers/mongoid.rb
@@ -2,6 +2,7 @@
 
 begin
   require 'mongoid'
+  require 'rails'
   puts "mongoid #{Mongoid::VERSION} gem found, running mongoid specs \e[32m#{'✔'}\e[0m"
 
   if Mongoid::VERSION.to_f <= 5