Gemfile in checksummer-0.2.2 vs Gemfile in checksummer-0.2.3

@@ -3,9 +3,11 @@
 # Example:
 #   gem "activesupport", ">= 2.3.5"
 
 # Add dependencies to develop your gem here.
 # Include everything needed to run rake, tests, features, etc.
+gem "json"
+
 group :development do
   gem 'autotest'
   gem 'autotest-growl'
   gem 'ruby-debug19'
   gem "cucumber", ">= 0"