diff --git a/Gemfile b/Gemfile
index b1e17c5..c819cd8 100644
--- a/Gemfile
+++ b/Gemfile
@@ -17,7 +17,7 @@ gem 'uglifier', '~> 4.1.20'
 # Use CoffeeScript for .js.coffee assets and views
 gem 'coffee-rails', '~> 4.2.2'
 # See https://github.com/sstephenson/execjs#readme for more supported runtimes
-# gem 'therubyracer',  platforms: :ruby
+gem 'mini_racer', platform: :ruby
 
 gem 'rails-i18n', '~> 5.1.3'
 
diff --git a/Gemfile.lock b/Gemfile.lock
index f1e7f6f..5f405fb 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -253,6 +253,7 @@ DEPENDENCIES
   devise-bootstrap-views (~> 0.0.11)
   jbuilder (~> 2.8.0)
   jquery-rails (~> 4.3.3)
+  mini_racer
   mysql2 (~> 0.5.2)
   omniauth
   omniauth-github