chef-provisioning.gemspec in chef-provisioning-1.9.1 vs chef-provisioning.gemspec in chef-provisioning-2.0.0

@@ -10,14 +10,16 @@
   s.description = s.summary
   s.author = 'John Keiser'
   s.email = '[e-mail]'
   s.homepage = 'http://github.com/chef/chef-provisioning/README.md'
 
+  s.required_ruby_version = ">= 2.2.2"
+
   s.add_dependency 'net-ssh', '>= 2.9', '< 4.0'
   s.add_dependency 'net-scp', '~> 1.0'
   s.add_dependency 'net-ssh-gateway', '~> 1.2.0'
   s.add_dependency 'inifile', '>= 2.0.2'
-  s.add_dependency 'cheffish', '>= 1.3.1', '< 4.0'  # 1.3.1 allows 'let' vars in unquoted recipes.
+  s.add_dependency 'cheffish', '~> 4.0'
   s.add_dependency 'winrm', '~> 1.3'
   s.add_dependency "mixlib-install",  "~> 1.0"
 
   s.add_development_dependency 'chef', '~> 12.1', "!= 12.4.0"  # 12.4.0 is incompatible.
   s.add_development_dependency 'rspec'