symbiont-ruby.gemspec in symbiont-ruby-0.3.0 vs symbiont-ruby.gemspec in symbiont-ruby-0.4.0

@@ -1,13 +1,14 @@
 # coding: utf-8
+# frozen_string_literal: true
 
-lib = File.expand_path('../lib', __FILE__)
+lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'symbiont/version'
 
 Gem::Specification.new do |spec|
-  spec.required_ruby_version = '>= 2.2.7'
+  spec.required_ruby_version = '>= 2.3.7'
 
   spec.name          = 'symbiont-ruby'
   spec.version       = Symbiont::VERSION
   spec.author        = 'Rustam Ibragimov'
   spec.email         = '[e-mail]'
@@ -19,22 +20,21 @@
                        'three contexts: in the context of required object, in the context of '\
                        'a closed proc\'s environment and in the global (Kernel) context.'
 
   spec.homepage      = 'https://github.com/0exp/symbiont-ruby'
   spec.license       = 'MIT'
-  spec.bindir        = "bin"
-  spec.require_paths = ["lib"]
+  spec.bindir        = 'bin'
+  spec.require_paths = ['lib']
 
   spec.files = `git ls-files -z`.split("\x0").reject do |f|
     f.match(%r{^(spec|features)/})
   end
 
-  spec.add_development_dependency 'rspec',          '~> 3.7'
-  spec.add_development_dependency 'rubocop',        '~> 0.57'
-  spec.add_development_dependency 'rubocop-rspec',  '~> 1.26'
-  spec.add_development_dependency 'simplecov',      '~> 0.15'
-  spec.add_development_dependency 'simplecov-json', '~> 0.2'
-  spec.add_development_dependency 'coveralls',      '~> 0.7'
+  spec.add_development_dependency 'rspec',            '~> 3.8'
+  spec.add_development_dependency 'simplecov',        '~> 0.16'
+  spec.add_development_dependency 'coveralls',        '~> 0.8'
+  spec.add_development_dependency 'armitage-rubocop', '~> 0.10'
+
   spec.add_development_dependency 'pry'
   spec.add_development_dependency 'rake'
   spec.add_development_dependency 'bundler'
   spec.add_development_dependency 'yard'
 end