nydp.gemspec in nydp-0.5.1 vs nydp.gemspec in nydp-0.6.0

@@ -16,8 +16,9 @@
   spec.files         = `git ls-files`.split($/)
   spec.executables   = spec.files.grep(%r{^bin/}) { |f| File.basename(f) }
   spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
   spec.require_paths = ["lib"]
 
-  spec.add_development_dependency "rake", "~> 12"
+  spec.add_development_dependency "irb"
+  spec.add_development_dependency "rake", "~> 13"
   spec.add_development_dependency 'rspec' #, '~> 3.1'
 end