nicht.gemspec in nicht-0.1.7 vs nicht.gemspec in nicht-0.1.8

@@ -22,10 +22,11 @@
   spec.bindir        = "exe"
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ["lib"]
 
   spec.add_development_dependency "bundler", "~> 1.16"
-  spec.add_development_dependency "rake", "~> 10.0"
-  spec.add_development_dependency "rspec", "~> 3.0"
+  spec.add_development_dependency "rake", "~> 12.3"
+  spec.add_development_dependency "rspec", "~> 3.7"
+  spec.add_development_dependency "simplecov", "~> 0.15"
 
   spec.add_runtime_dependency "awesome_print", ">= 1.6", "< 1.9"
 end