diff --git a/Gemfile b/Gemfile
index 3cd6556..6298b73 100644
--- a/Gemfile
+++ b/Gemfile
@@ -6,6 +6,7 @@ git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
 gemspec
 
 group :test do
+  gem 'rails'
   gem 'minitest-ci', require: false
   gem 'simplecov', '< 0.18', require: false
 end