twilio-ruby.gemspec in twilio-ruby-3.0.0 vs twilio-ruby.gemspec in twilio-ruby-3.1.0

@@ -1,14 +1,14 @@
 Gem::Specification.new do |s|
   s.name = "twilio-ruby"
-  s.version = "3.0.0"
+  s.version = "3.1.0"
   s.author = "Andrew Benton"
   s.email = "[e-mail]"
   s.description = "A simple library for communicating with the Twilio REST API"
   s.summary = "A simple library for communicating with the Twilio REST API"
   s.homepage = "http://github.com/twilio/twilio-ruby"
   s.platform = Gem::Platform::RUBY
   s.files = Dir['lib/**/*.rb'] + Dir['test/**/*.rb'] + ['examples.rb', 'Rakefile', 'LICENSE', 'README.md', 'twilio-ruby.gemspec']
   s.test_files = Dir['test/**/*.rb']
+  s.add_dependency("json", ">= 1.2.0")
   s.add_dependency("builder", ">= 2.1.2")
-  s.add_dependency("crack", ">= 0.1.8")
 end