ahoy_email.gemspec in ahoy_email-0.4.0 vs ahoy_email.gemspec in ahoy_email-0.5.0

@@ -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 = ">= 2.0.0"
+
   spec.add_runtime_dependency "rails"
   spec.add_runtime_dependency "addressable"
   spec.add_runtime_dependency "nokogiri"
   spec.add_runtime_dependency "safely_block", ">= 0.1.1"