postman_mta.gemspec in postman_mta-0.1.8 vs postman_mta.gemspec in postman_mta-0.1.9

@@ -1,8 +1,8 @@
-# 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 'postman_mta/version'
 
 Gem::Specification.new do |spec|
   spec.name          = 'postman_mta'
@@ -23,11 +23,12 @@
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ['lib']
 
   spec.add_development_dependency 'bundler', '~> 1.14'
   spec.add_development_dependency 'guard-rspec', '~> 4.7', '>= 4.7.3'
+  spec.add_development_dependency 'overcommit'
   spec.add_development_dependency 'rake', '~> 10.0'
   spec.add_development_dependency 'reek'
-  spec.add_development_dependency 'overcommit'
+  spec.add_development_dependency 'rubocop'
 
-  spec.add_dependency 'httparty', '~> 0.15.6'
+  spec.add_dependency 'httparty', '~> 0.15'
 end