mini_racer.gemspec in mini_racer-0.2.14 vs mini_racer.gemspec in mini_racer-0.2.15

@@ -28,9 +28,10 @@
 
   spec.add_development_dependency "bundler"
   spec.add_development_dependency "rake", ">= 12.3.3"
   spec.add_development_dependency "minitest", "~> 5.0"
   spec.add_development_dependency "rake-compiler"
+  spec.add_development_dependency "m"
 
   spec.add_dependency 'libv8', '> 7.3'
   spec.require_paths = ["lib", "ext"]
 
   spec.extensions = ["ext/mini_racer_extension/extconf.rb"]