redis_lock.gemspec in redis_lock-0.1.0 vs redis_lock.gemspec in redis_lock-0.2.0

@@ -21,7 +21,8 @@
   spec.require_paths = ["lib"]
 
   spec.add_development_dependency "bundler", "~> 1.15"
   spec.add_development_dependency "rake", "~> 10.0"
   spec.add_development_dependency "rspec", "~> 3.6"
+  spec.add_development_dependency "mock_redis", "~> 0.17"
   spec.add_dependency "redis", "~> 3"
 end