memoist.gemspec in memoist-0.16.0 vs memoist.gemspec in memoist-0.16.1

@@ -31,9 +31,11 @@
   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 = '>= 1.9.2'
+
   spec.add_development_dependency 'benchmark-ips'
   spec.add_development_dependency 'bundler'
   if RUBY_VERSION < '1.9.3'
     spec.add_development_dependency 'rake', '~> 10.4'
   else