diff --git a/ruby_speech.gemspec b/ruby_speech.gemspec
index 38ac1c5..8d68b5b 100644
--- a/ruby_speech.gemspec
+++ b/ruby_speech.gemspec
@@ -43,6 +43,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency %q<guard-rake>, [">= 0"]
   s.add_development_dependency %q<rake-compiler>, [">= 0"]
   s.add_development_dependency %q<coveralls>, [">= 0"]
+  s.add_development_dependency %q<simplecov>, [">= 0"]
 
   if RUBY_VERSION < '2.0'
     s.add_development_dependency %q<term-ansicolor>, ["< 1.3.1"]
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 1191f3f..ca50970 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -2,12 +2,17 @@
 # frozen_string_literal: true
 
 %w{
-  ruby_speech
-  rspec/its
+  simplecov
+  coveralls
 }.each { |f| require f }
 
-require 'coveralls'
-Coveralls.wear!
+SimpleCov.formatters << SimpleCov::Formatter::HTMLFormatter
+SimpleCov.start
+
+%w{
+  rspec/its
+  ruby_speech
+}.each { |f| require f }
 
 Dir[File.dirname(__FILE__) + "/support/**/*.rb"].each {|f| require f}