image_optim.gemspec in image_optim-0.13.3 vs image_optim.gemspec in image_optim-0.14.0

@@ -1,10 +1,10 @@
 # encoding: UTF-8
 
 Gem::Specification.new do |s|
   s.name        = 'image_optim'
-  s.version     = '0.13.3'
+  s.version     = '0.14.0'
   s.summary     = %q{Optimize (lossless compress) images (jpeg, png, gif, svg) using external utilities (advpng, gifsicle, jpegoptim, jpegtran, optipng, pngcrush, pngout, svgo)}
   s.homepage    = "http://github.com/toy/#{s.name}"
   s.authors     = ['Ivan Kuchin']
   s.license     = 'MIT'
 
@@ -18,7 +18,10 @@
   s.add_dependency 'fspath', '~> 2.1.0'
   s.add_dependency 'image_size', '~> 1.3.0'
   s.add_dependency 'exifr', '~> 1.1.3'
   s.add_dependency 'progress', '~> 3.0.0'
   s.add_dependency 'in_threads', '~> 1.2.0'
-  s.add_development_dependency 'rspec'
+  s.add_development_dependency 'rspec', '~> 3.0'
+  if Gem::Version.new(RUBY_VERSION) >= Gem::Version.new('1.9.2')
+    s.add_development_dependency 'rubocop', '~> 0.24.1'
+  end
 end