diff --git a/Gemfile b/Gemfile
index a1c14b059e..90ea9dff7a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -47,7 +47,6 @@ platforms :mri do
 end
 
 platforms :ruby do
-  gem 'json'
   gem 'yajl-ruby'
   gem 'nokogiri', '>= 1.4.5'