diff --git a/Gemfile b/Gemfile
index 539bc0d34c6..00cc6222be0 100644
--- a/Gemfile
+++ b/Gemfile
@@ -40,7 +40,7 @@ gem 'active_model_serializers', '~> 0.8.3'
 gem 'onebox'
 
 gem 'ember-rails'
-gem 'ember-source', '1.11.3.1'
+gem 'ember-source', '1.12.1'
 gem 'handlebars-source', '2.0.0'
 gem 'barber'
 gem 'babel-transpiler'