diff --git a/Gemfile b/Gemfile
index b9a774ca..12089acb 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,7 +8,6 @@ group :development do
 end
 
 gem 'yard'
-gem 'simplecov'
 
 # Additional gems that are useful, but not required for development.
 group :extras do
diff --git a/vcr.gemspec b/vcr.gemspec
index 638ac722..b3d0eb8e 100644
--- a/vcr.gemspec
+++ b/vcr.gemspec
@@ -40,6 +40,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'yajl-ruby', '~> 1.1.0'
   s.add_development_dependency 'json', '~> 1.6.5'
   s.add_development_dependency 'limited_red', '~> 0.3.7'
+  s.add_development_dependency 'simple_cov', '~> 0.5.3'
 
   unless RUBY_PLATFORM == 'java'
     s.add_development_dependency 'patron', '~> 0.4.15'