Forwarded: https://gitlab.com/gitlab-org/gitlab-ce/issues/2761

Index: gitlab/Gemfile
===================================================================
--- gitlab.orig/Gemfile
+++ gitlab/Gemfile
@@ -57,7 +57,7 @@ gem 'gollum-lib', '~> 4.0.2'
 gem "gitlab-linguist", "~> 3.0.1", require: "linguist"
 
 # API
-gem 'grape',        '~> 0.6.1'
+gem 'grape',        '~> 0.6'
 gem 'grape-entity', '~> 0.4.2'
 gem 'rack-cors',    '~> 0.4.0', require: 'rack/cors'