efo_nelfo.gemspec in efo_nelfo-1.5.4 vs efo_nelfo.gemspec in efo_nelfo-1.5.5

@@ -16,9 +16,11 @@
   spec.files         = `git ls-files`.split($/)
   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"
+
   spec.add_development_dependency "bundler"
   spec.add_development_dependency "rake"
   spec.add_development_dependency "awesome_print"
   spec.add_development_dependency "guard"
   spec.add_development_dependency "guard-minitest"