Gemfile in trusty-cms-3.3.7 vs Gemfile in trusty-cms-3.4.0

@@ -16,10 +16,10 @@
   gem 'codeclimate-test-reporter'
   gem 'database_cleaner'
   gem 'factory_bot_rails'
   gem 'launchy',         '~> 2.4.2'
   gem 'mysql2'
-  gem 'poltergeist',      '~> 1.14.0'
+  gem 'poltergeist',      '~> 1.18.1'
   gem 'pry-byebug'
   gem 'rails-observers'
   gem 'rspec-rails'
 end