bukin.gemspec in bukin-0.6.0 vs bukin.gemspec in bukin-0.7.0

@@ -15,9 +15,9 @@
   gem.files         = `git ls-files`.split($/)
   gem.executables   = gem.files.grep(%r{^bin/}).map{ |f| File.basename(f) }
   gem.test_files    = gem.files.grep(%r{^(test|spec|features)/})
   gem.require_paths = ['lib']
 
+  gem.required_ruby_version = '>= 1.9.1'
   gem.add_dependency('thor', '~> 0.18.1')
-  gem.add_dependency('json', '~> 1.8.0')
-  gem.add_dependency('rubyzip', '~> 0.9.9')
+  gem.add_dependency('rubyzip', '~> 1.1.0')
 end