banditry.gemspec in banditry-0.4.0 vs banditry.gemspec in banditry-0.5.0

@@ -17,13 +17,13 @@
   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.required_ruby_version = '>= 2.1'
+  spec.required_ruby_version = '>= 2.2'
 
-  spec.add_development_dependency "bundler", "~> 1.9"
-  spec.add_development_dependency "rake", "~> 10.0"
+  spec.add_development_dependency "bundler", "~> 1.15"
+  spec.add_development_dependency "rake", "~> 12.0"
   spec.add_development_dependency 'minitest', '~> 5.7'
 
   spec.add_development_dependency 'pry'
 end