judge_system.gemspec in judge_system-1.7.3 vs judge_system.gemspec in judge_system-1.7.4

@@ -1,8 +1,6 @@
-# coding: utf-8
-
-lib = File.expand_path('../lib', __FILE__)
+lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'judge_system/version'
 
 Gem::Specification.new do |spec|
   spec.name          = 'judge_system'
@@ -26,12 +24,12 @@
     f.match(%r{^(test|spec|features)/})
   end
   spec.bindir        = 'exe'
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ['lib']
-  spec.add_dependency 'rbzip2'
   spec.add_dependency 'ffi'
-  spec.add_development_dependency 'bundler', '~> 1.13'
-  spec.add_development_dependency 'rake',    '~> 10.0'
-  spec.add_development_dependency 'rspec',   '~> 3.0'
-  spec.add_development_dependency 'rubocop', '~> 0.42.0'
+  spec.add_dependency 'rbzip2'
+  spec.add_development_dependency 'bundler', '~> 1.17.1'
+  spec.add_development_dependency 'rake',    '~> 12.0'
+  spec.add_development_dependency 'rspec',   '~> 3.4'
+  spec.add_development_dependency 'rubocop', '~> 0.60.0'
 end