roku_builder.gemspec in roku_builder-3.3.2 vs roku_builder.gemspec in roku_builder-3.3.3

@@ -16,9 +16,11 @@
   spec.files         = `git ls-files -z`.split("\x0")
   spec.executables   = spec.files.grep(%r{^bin/}) { |f| File.basename(f) }
   spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
   spec.require_paths = ["lib"]
 
+  spec.required_ruby_version = "~> 2.2"
+
   spec.add_dependency "rubyzip",             "~> 1.1"
   spec.add_dependency "faraday",             "~> 0.9"
   spec.add_dependency "faraday-digestauth",  "~> 0.2"
   spec.add_dependency "git",                 "~> 1.2.9"
   spec.add_dependency "net-ping",            "~> 1.7"