diff --git a/Gemfile b/Gemfile
index 375affa..4f18655 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,4 +3,5 @@ gemspec
 
 group :test do
   gem 'rake', '< 11'
+  gem 'codecov'
 end
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index c52a6fc..1b12d53 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -1,3 +1,10 @@
+require 'simplecov'
+SimpleCov.start
+if ENV['CI'] == 'true'
+  require 'codecov'
+  SimpleCov.formatter = SimpleCov::Formatter::Codecov
+end
+
 $LOAD_PATH << File.join(File.dirname(__FILE__), '..', 'lib')
 
 require 'rubygems'