diff --git a/spinach.gemspec b/spinach.gemspec
index 331cfa4..b8af187 100644
--- a/spinach.gemspec
+++ b/spinach.gemspec
@@ -12,7 +12,7 @@ Gem::Specification.new do |gem|
   gem.add_runtime_dependency 'gherkin-ruby', '>= 0.3.2'
   gem.add_runtime_dependency 'colorize'
   gem.add_development_dependency 'rake'
-  gem.add_development_dependency 'mocha', "~> 1.5.0"
+  gem.add_development_dependency 'mocha', "~> 2.1.0"
   gem.add_development_dependency 'sinatra'
   gem.add_development_dependency 'capybara'
   gem.add_development_dependency 'pry'