diff --git a/Gemfile b/Gemfile
index b1fa2d95..bb72bed3 100644
--- a/Gemfile
+++ b/Gemfile
@@ -24,7 +24,8 @@ gem 'custom_fields', '1.0.0.beta.6'
 gem 'fog', '0.3.7'
 gem 'mimetype-fu'
 gem 'actionmailer-with-request'
-gem 'heroku', '1.18.2'
+gem 'json'
+gem 'heroku', '1.18.3'
 gem 'httparty', '>= 0.6.1'
 gem 'RedCloth', '4.2.7'
 gem 'delayed_job', '2.1.4'
diff --git a/lib/locomotive/engine.rb b/lib/locomotive/engine.rb
index f3254a3f..a8cbe98c 100644
--- a/lib/locomotive/engine.rb
+++ b/lib/locomotive/engine.rb
@@ -1,6 +1,7 @@
 puts "...loading Locomotive engine"
 
 require 'rails'
+# require 'json/pure'
 require 'devise'
 require 'mongoid'
 require 'mongoid_acts_as_tree'
diff --git a/locomotive_cms.gemspec b/locomotive_cms.gemspec
index 54a1bb21..e2f39e60 100644
--- a/locomotive_cms.gemspec
+++ b/locomotive_cms.gemspec
@@ -37,7 +37,7 @@ Gem::Specification.new do |s|
   s.add_dependency "fog", "0.3.7"
   s.add_dependency "mimetype-fu"
   s.add_dependency "actionmailer-with-request"
-  s.add_dependency "heroku"
+  s.add_dependency "heroku", "1.18.3"
   s.add_dependency "httparty", ">= 0.6.1"
   s.add_dependency "RedCloth", "4.2.7"
   s.add_dependency "delayed_job", "2.1.4"