ballast.gemspec in ballast-1.5.1 vs ballast.gemspec in ballast-1.5.2

@@ -24,9 +24,10 @@
 
   gem.required_ruby_version = ">= 2.0"
 
   gem.add_dependency("actionpack", "~> 4.0.0")
   gem.add_dependency("rack", "~> 1.5.2")
+  gem.add_dependency("oj", "~> 2.5.3")
   gem.add_dependency("lazier", "~> 3.3.10")
   gem.add_dependency("brauser", "~> 3.2.4")
   gem.add_dependency("interactor", "~> 2.1.0")
   gem.add_dependency("addressable", "~> 2.3.5")
   gem.add_dependency("rack-fiber_pool", ">= 0.9.3")