--- a/Gemfile
+++ b/Gemfile
@@ -79,7 +79,7 @@
 # API
 gem 'grape', '~> 0.19.2'
 gem 'grape-entity', '~> 0.6.0'
-gem 'rack-cors', '~> 0.4.0', require: 'rack/cors'
+gem 'rack-cors', '~> 1.0', require: 'rack/cors'
 
 # Disable strong_params so that Mash does not respond to :permitted?
 gem 'hashie-forbidden_attributes'