Currently a dependency for grape `~> 1.1` is defined but gitlab does not work...

Currently a dependency for grape `~> 1.1` is defined but gitlab does not work with `grape` version `1.2` installed.
Fix version of `grape` to 1.1.x.

Gemfile

@@ -91,7 +91,7 @@ gem 'gitlab_omniauth-ldap', '~> 2.0.4', require: 'omniauth-ldap'
 gem 'net-ldap'
 
 # API
-gem 'grape', '~> 1.1'
+gem 'grape', '~> 1.1.0'
 gem 'grape-entity', '~> 0.7.1'
 gem 'rack-cors', '~> 1.0.0', require: 'rack/cors'