diff --git a/simple_oauth.gemspec b/simple_oauth.gemspec
index 5a675f7..c496b9f 100644
--- a/simple_oauth.gemspec
+++ b/simple_oauth.gemspec
@@ -3,7 +3,7 @@ require File.expand_path('../lib/simple_oauth/version', __FILE__)
 
 Gem::Specification.new do |gem|
   gem.add_development_dependency 'minitest'
-  gem.add_development_dependency 'mocha', '~> 0.9.0'
+  gem.add_development_dependency 'mocha', '~> 0.10.0'
   gem.add_development_dependency 'rake'
   gem.add_development_dependency 'simplecov'
   gem.add_development_dependency 'yard'
diff --git a/test/helper.rb b/test/helper.rb
index a2428c8..b05409a 100644
--- a/test/helper.rb
+++ b/test/helper.rb
@@ -1,8 +1,10 @@
-require 'rubygems'
+unless ENV['CI']
+  require 'simplecov'
+  SimpleCov.start
+end
+
 require 'bundler'
 Bundler.setup
-require 'simplecov'
-SimpleCov.start
 require 'test/unit'
 require 'mocha'
 require 'simple_oauth'