diff --git a/Gemfile b/Gemfile
index 3fd0970..41bcd1e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -12,6 +12,7 @@ group :development do
 end
 
 group :test do
+  gem 'coveralls', :require => false
   gem 'hashie', '~> 3.5.0', :platforms => [:jruby_18]
   gem 'json', '~> 2.0.3', :platforms => [:jruby_18, :jruby_19, :ruby_19]
   gem 'mime-types', '~> 3.1', :platforms => [:jruby_18]
diff --git a/spec/helper.rb b/spec/helper.rb
index 5cbc7e7..aa726a3 100644
--- a/spec/helper.rb
+++ b/spec/helper.rb
@@ -1,5 +1,11 @@
 if RUBY_VERSION >= '1.9'
   require 'simplecov'
+  require 'coveralls'
+
+  SimpleCov.formatters = [
+    SimpleCov::Formatter::HTMLFormatter,
+    Coveralls::SimpleCov::Formatter
+  ]
 
   SimpleCov.start do
     add_filter '/spec/'