1 files changed, 4 insertions, 0 deletions
diff --git a/Gemfile b/Gemfile
index eb44418..0beb1f0 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,3 +5,7 @@ source :rubygems
 gemspec :name => 'json'
 gemspec :name => 'json_pure'
 gemspec :name => 'json-java'
+
+group :development do
+  gem 'simplecov', :platform => :mri_19
+end