Index: gitlab/Gemfile
===================================================================
--- gitlab.orig/Gemfile
+++ gitlab/Gemfile
@@ -16,7 +16,7 @@ gem "pg", '~> 0.18.2', group: :postgres
 # Authentication libraries
 gem 'devise',                 '~> 3.5.1'
 gem 'devise-async',           '~> 0.9.0'
-gem 'doorkeeper',             '~> 2.1.3'
+gem 'doorkeeper',             '~> 2.1'
 gem 'omniauth',               '~> 1.2.2'
 gem 'omniauth-bitbucket',     '~> 0.0.2'
 gem 'omniauth-github',        '~> 1.1.1'