diff --git a/Gemfile.lock b/Gemfile.lock
index 1c56b2c..4ac7c69 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    paypal-express (0.5.4)
+    paypal-express (0.5.5)
       activesupport (>= 2.3)
       attr_required (>= 0.0.5)
       restclient_with_cert
@@ -16,20 +16,15 @@ GEM
       thread_safe (~> 0.1)
       tzinfo (~> 0.3.37)
     atomic (1.1.14)
-    attr_required (0.0.5)
-    configatron (2.13.0)
-      yamler (>= 0.1.0)
-    cover_me (1.2.0)
-      configatron
-      hashie
+    attr_required (1.0.0)
     diff-lcs (1.2.5)
+    docile (1.1.3)
     fakeweb (1.3.0)
-    hashie (2.0.5)
     i18n (0.6.9)
-    mime-types (2.0)
+    mime-types (2.1)
     minitest (4.7.5)
-    multi_json (1.8.2)
-    rake (10.1.0)
+    multi_json (1.8.4)
+    rake (10.1.1)
     rest-client (1.6.7)
       mime-types (>= 1.16)
     restclient_with_cert (0.0.8)
@@ -39,21 +34,25 @@ GEM
       rspec-expectations (~> 2.14.0)
       rspec-mocks (~> 2.14.0)
     rspec-core (2.14.7)
-    rspec-expectations (2.14.4)
+    rspec-expectations (2.14.5)
       diff-lcs (>= 1.1.3, < 2.0)
-    rspec-mocks (2.14.4)
+    rspec-mocks (2.14.5)
+    simplecov (0.8.2)
+      docile (~> 1.1.0)
+      multi_json
+      simplecov-html (~> 0.8.0)
+    simplecov-html (0.8.0)
     thread_safe (0.1.3)
       atomic
     tzinfo (0.3.38)
-    yamler (0.1.0)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
-  cover_me (>= 1.2.0)
   fakeweb (>= 1.3.0)
   jruby-openssl (>= 0.7)
   paypal-express!
   rake (>= 0.8)
   rspec (>= 2)
+  simplecov
diff --git a/Rakefile b/Rakefile
index 44a32d3..344bbea 100644
--- a/Rakefile
+++ b/Rakefile
@@ -4,22 +4,16 @@ Bundler::GemHelper.install_tasks
 require 'rspec/core/rake_task'
 RSpec::Core::RakeTask.new(:spec)
 
-if RUBY_VERSION >= '1.9'
-  namespace :cover_me do
-    desc "Generates and opens code coverage report."
-    task :report do
-      require 'cover_me'
-      CoverMe.complete!
-    end
-  end
-  task :spec do
-    Rake::Task['cover_me:report'].invoke unless ENV['TRAVIS_RUBY_VERSION']
-  end
-else
-  RSpec::Core::RakeTask.new(:rcov) do |spec|
-    spec.rcov = true
-    spec.rcov_opts = ['-Ilib -Ispec --exclude spec,gems']
+namespace :coverage do
+  desc "Open coverage report"
+  task :report do
+    require 'simplecov'
+    `open "#{File.join SimpleCov.coverage_path, 'index.html'}"`
   end
 end
 
+task :spec do
+  Rake::Task[:'coverage:report'].invoke unless ENV['TRAVIS_RUBY_VERSION']
+end
+
 task :default => :spec
\ No newline at end of file
diff --git a/paypal-express.gemspec b/paypal-express.gemspec
index 1455288..06c58d8 100644
--- a/paypal-express.gemspec
+++ b/paypal-express.gemspec
@@ -17,11 +17,7 @@ Gem::Specification.new do |s|
   s.add_dependency "restclient_with_cert"
   s.add_dependency "attr_required", ">= 0.0.5"
   s.add_development_dependency "rake", ">= 0.8"
-  if RUBY_VERSION >= '1.9'
-    s.add_development_dependency "cover_me", ">= 1.2.0"
-  else
-    s.add_development_dependency "rcov", ">= 0.9"
-  end
+  s.add_development_dependency "simplecov"
   s.add_development_dependency "rspec", ">= 2"
   s.add_development_dependency "fakeweb", ">= 1.3.0"
 end
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 3063cd1..4391abc 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -1,5 +1,7 @@
-if RUBY_VERSION >= '1.9'
-  require 'cover_me'
+require 'simplecov'
+
+SimpleCov.start do
+  add_filter 'spec'
 end
 
 require 'paypal'