concern_builder.gemspec in concern_builder-0.0.2 vs concern_builder.gemspec in concern_builder-0.0.3

@@ -15,13 +15,13 @@
   gem.files         = `git ls-files`.split($/)
   gem.executables   = gem.files.grep(%r{^bin/}) { |f| File.basename(f)  }
   gem.test_files    = gem.files.grep(%r{^(test|gem|features)/})
   gem.require_paths = ["lib"]
 
-  gem.add_runtime_dependency 'activesupport'
+  gem.add_runtime_dependency 'activesupport', '~> 5.1.4'
 
   gem.add_development_dependency "bundler", "~> 1.6"
-  gem.add_development_dependency "rake"
+  gem.add_development_dependency "rake", "~> 12.0.0"
   gem.add_development_dependency "rspec", "~> 2.14"
   gem.add_development_dependency 'simplecov'
 end