diff --git a/Gemfile b/Gemfile
index 120c4bca8f..e7bc2585a7 100644
--- a/Gemfile
+++ b/Gemfile
@@ -11,7 +11,7 @@ gem 'rack-cache', '~> 1.2'
 gem 'jquery-rails', '~> 3.1.0'
 gem 'turbolinks'
 gem 'coffee-rails', '~> 4.0.0'
-gem 'arel', github: 'rails/arel'
+gem 'arel', github: 'rails/arel', branch: 'master'
 gem 'sprockets-rails', github: 'rails/sprockets-rails', branch: '2-1-stable'
 
 # require: false so bcrypt is loaded only when has_secure_password is used.