polyfill.gemspec in polyfill-0.10.0 vs polyfill.gemspec in polyfill-1.0.0

@@ -1,6 +1,7 @@
 # coding: utf-8
+
 lib = File.expand_path('../lib', __FILE__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'polyfill/version'
 
 Gem::Specification.new do |spec|
@@ -21,9 +22,9 @@
   spec.bindir        = 'exe'
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ['lib']
 
   spec.add_development_dependency 'bundler', '~> 1.14'
-  spec.add_development_dependency 'rake', '~> 10.0'
-  spec.add_development_dependency 'rspec', '~> 3.5'
-  spec.add_development_dependency 'rubocop', '~> 0.47.1'
+  spec.add_development_dependency 'rake', '~> 12.0'
+  spec.add_development_dependency 'rspec', '~> 3.6'
+  spec.add_development_dependency 'rubocop', '~> 0.48.1'
 end