set_builder.gemspec in set_builder-2.0.0.beta2 vs set_builder.gemspec in set_builder-2.0.0.beta3

@@ -1,9 +1,9 @@
 # coding: utf-8
 lib = File.expand_path('../lib', __FILE__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
-require 'set_builder/version'
+require "set_builder/version"
 
 Gem::Specification.new do |spec|
   spec.name          = "set_builder"
   spec.version       = SetBuilder::VERSION
   spec.authors       = ["Bob Lail"]
@@ -16,13 +16,15 @@
   spec.files         = `git ls-files`.split($/)
   spec.executables   = spec.files.grep(%r{^bin/}) { |f| File.basename(f) }
   spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
   spec.require_paths = ["lib"]
 
-  spec.add_dependency "rails", ">= 3.1", "< 4.2"
+  spec.add_dependency "rails", "~> 4.2.0"
   spec.add_dependency "arel"
   spec.add_development_dependency "bundler", "~> 1.3"
   spec.add_development_dependency "rake"
   spec.add_development_dependency "jspec"
   spec.add_development_dependency "pry"
+  spec.add_development_dependency "shoulda-context"
   spec.add_development_dependency "minitest-reporters"
+  spec.add_development_dependency "timecop"
 end