heartcheck.gemspec in heartcheck-1.2.0 vs heartcheck.gemspec in heartcheck-1.2.1

@@ -19,9 +19,10 @@
 
   spec.add_runtime_dependency 'rack', '>= 1.4.0', '< 2.1'
   spec.add_runtime_dependency 'multi_json', '~> 1.0'
   spec.add_runtime_dependency 'net-telnet', '~> 0.1.1'
 
+  spec.add_development_dependency 'rake'
   spec.add_development_dependency 'pry-nav', '~> 0.2.4'
   spec.add_development_dependency 'rspec', '~> 3.5.0'
   spec.add_development_dependency 'rubocop'
   spec.add_development_dependency 'thor', '~> 0.19.1'
   spec.add_development_dependency 'rack-test', '~> 0.6.3'