1 files changed, 1 insertions, 1 deletions
diff --git a/Gemfile b/Gemfile
index dc6dc855a2..2397eb6c33 100644
--- a/Gemfile
+++ b/Gemfile
@@ -7,7 +7,7 @@ gemspec
 # ensure correct loading order
 gem 'mocha', '~> 0.14', require: false
 
-gem 'rack', github: 'rack/rack'
+gem 'rack', github: 'rack/rack', branch: 'master'
 gem 'rack-cache', '~> 1.2'
 gem 'jquery-rails', '~> 3.1.0'
 gem 'turbolinks', github: 'rails/turbolinks', branch: 'master'