Rakefile in gem-compare-0.0.3 vs Rakefile in gem-compare-0.0.4

@@ -1,12 +1,13 @@
 require 'rubygems/package_task'
 require 'rake/testtask'
 require 'rdoc/task'
+require_relative 'lib/rubygems/comparator'
 
 gemspec = Gem::Specification.new do |s|
   s.name     = 'gem-compare'
-  s.version  = '0.0.3'
+  s.version  = Gem::Comparator::VERSION
   s.platform = Gem::Platform::RUBY
   s.summary     = 'RubyGems plugin for comparing gem versions'
   s.description = <<-EOF
                     gem-compare is a RubyGems plugin that helps to compare versions of the given gem.
                     It searches for differences in metadata as well as in files.
@@ -18,10 +19,10 @@
   s.files = FileList['README.md', 'LICENSE', 'Rakefile',
                      'lib/**/*.rb', 'lib/**/**/*.rb', 'test/**/test*.rb']
   s.required_ruby_version     = '>= 2.0.0'
   s.required_rubygems_version = '>= 2.0.0'
   s.add_runtime_dependency 'json'
-  s.add_runtime_dependency 'curl'
+  s.add_runtime_dependency 'curb'
   s.add_runtime_dependency 'diffy'
   s.add_runtime_dependency 'rainbow'
   s.add_runtime_dependency 'gemnasium-parser'
 end