Gemfile in json_serialize-1.0.0 vs Gemfile in json_serialize-2.0.0

@@ -2,12 +2,12 @@
 
 # DEPENDENCIES
 gem 'activerecord', require: 'active_record'
 gem 'activesupport', require: 'active_support/core_ext/object/try'
 
-# DEVELOPMENT
-gem 'jeweler'
-gem 'yard'
-gem 'RedCloth', require: 'redcloth'
-
-# TEST
-gem 'rspec'
+group :development do
+  gem 'jeweler'
+  gem 'yard'
+  gem 'RedCloth', require: 'redcloth'
+  gem 'rspec'
+  gem 'sqlite3'
+end