salsify_rubocop.gemspec in salsify_rubocop-0.52.1.1 vs salsify_rubocop.gemspec in salsify_rubocop-0.58.0.rc1

@@ -1,6 +1,6 @@
-lib = File.expand_path('../lib', __FILE__)
+lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'salsify_rubocop/version'
 
 Gem::Specification.new do |spec|
   spec.name          = 'salsify_rubocop'
@@ -30,8 +30,8 @@
 
   spec.add_development_dependency 'bundler', '~> 1.11'
   spec.add_development_dependency 'rake', '~> 10.0'
   spec.add_development_dependency 'rspec', '~> 3.0'
 
-  spec.add_runtime_dependency 'rubocop', '~> 0.52.1'
-  spec.add_runtime_dependency 'rubocop-rspec', '~> 1.21.0'
+  spec.add_runtime_dependency 'rubocop', '~> 0.58.0'
+  spec.add_runtime_dependency 'rubocop-rspec', '~> 1.29.0'
 end