pdd.gemspec in pdd-0.20.5 vs pdd.gemspec in pdd-0.20.6

@@ -1,6 +1,6 @@
-# Copyright (c) 2014-2019 Yegor Bugayenko
+# Copyright (c) 2014-2020 Yegor Bugayenko
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the 'Software'), to deal
 # in the Software without restriction, including without limitation the rights
 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
@@ -27,12 +27,12 @@
 Gem::Specification.new do |s|
   s.specification_version = 2 if s.respond_to? :specification_version=
   if s.respond_to? :required_rubygems_version=
     s.required_rubygems_version = Gem::Requirement.new('>= 0')
   end
-  s.rubygems_version = '2.2'
-  s.required_ruby_version = '>= 2.2'
+  s.rubygems_version = '2.3'
+  s.required_ruby_version = '>= 2.3'
   s.name = 'pdd'
   s.version = PDD::VERSION
   s.license = 'MIT'
   s.summary = 'Puzzle Driven Development collector'
   s.description = 'Collects PDD puzzles from a source code base'
@@ -42,13 +42,14 @@
   s.files = `git ls-files`.split($RS)
   s.executables = s.files.grep(%r{^bin/}) { |f| File.basename(f) }
   s.test_files = s.files.grep(%r{^(test|spec|features)/})
   s.rdoc_options = ['--charset=UTF-8']
   s.extra_rdoc_files = ['README.md', 'LICENSE.txt']
-  s.add_runtime_dependency 'nokogiri', '1.10.3'
-  s.add_runtime_dependency 'rainbow', '~>3.0'
-  s.add_runtime_dependency 'slop', '4.6.1'
-  s.add_development_dependency 'codecov', '0.1.10'
+  s.add_runtime_dependency 'nokogiri', '~> 1.10'
+  s.add_runtime_dependency 'rainbow', '~> 3.0'
+  s.add_runtime_dependency 'slop', '~> 4.6'
+  s.add_development_dependency 'aruba', '~> 0.14.1'
+  s.add_development_dependency 'codecov', '0.2.12'
   s.add_development_dependency 'cucumber', '3.1.0'
   s.add_development_dependency 'minitest', '5.5.0'
   s.add_development_dependency 'rake', '12.0.0'
   s.add_development_dependency 'rdoc', '4.2.0'
   s.add_development_dependency 'rspec-rails', '3.1.0'