diff --git a/Gemfile b/Gemfile
index cb2ca3e6..bcddcf89 100644
--- a/Gemfile
+++ b/Gemfile
@@ -29,7 +29,10 @@ gem 'tracks-chartjs-ror'
 gem 'will_paginate'
 
 # See https://github.com/sstephenson/execjs#readme for more supported runtimes
-gem 'therubyracer', group: :therubyracer
+group :therubyracer do
+  gem 'therubyracer'
+  gem 'mini_racer'
+end
 
 # Use --without <group> argument to skip unnecessary drivers
 gem 'sqlite3', group: :sqlite
@@ -56,7 +59,6 @@ group :development, :test do
 end
 
 group :test do
-
   # get test coverage info on codeclimate
   gem 'codeclimate-test-reporter', '1.0.9', group: :test, require: nil
   gem 'database_cleaner', '~> 1'
diff --git a/Gemfile.lock b/Gemfile.lock
index b81a50c0..5e6c3768 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -369,6 +369,7 @@ DEPENDENCIES
   jquery-ui-rails (~> 6.0.1)
   kt-paperclip (~> 7.2)
   listen
+  mini_racer
   minitest-stub-const
   mocha
   mysql2 (~> 0.5.5)