heartcheck.gemspec in heartcheck-1.1.0 vs heartcheck.gemspec in heartcheck-1.1.1

@@ -15,19 +15,18 @@
   spec.files = `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
   spec.bindir = "exe"
   spec.executables = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ["lib"]
 
-  spec.add_runtime_dependency 'rack', '~> 1', '>= 1.4.0'
+  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 'pry-nav', '~> 0.2.0', '>= 0.2.4'
-  spec.add_development_dependency 'rspec', '~> 3.1.0', '>= 3.1.0'
-  spec.add_development_dependency 'rubocop', '~> 0.27.0', '>= 0.27.1'
-  spec.add_development_dependency 'thor', '~> 0.19.0', '>= 0.19.1'
-  spec.add_development_dependency 'rack-test', '~> 0.6.0', '>= 0.6.3'
-  spec.add_development_dependency 'oj'
-  # for documentation
-  spec.add_development_dependency 'yard', '~> 0.8.0', '>= 0.8.7.6'
-  spec.add_development_dependency 'concurrent-ruby', '~> 0.9.1', '>= 0.9.1'
+  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'
+  spec.add_development_dependency 'oj', '~> 2.17.1'
+  spec.add_development_dependency 'yard', '~> 0.9.5'
+  spec.add_development_dependency 'concurrent-ruby', '~> 1.0.2'
 end