diff --git a/Gemfile b/Gemfile
index 565186b..ef1f20c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -7,3 +7,4 @@ gem 'puppet-lint', '>= 1.0.0'
 gem 'facter', '>= 1.7.0'
 gem 'beaker-rspec'
 gem 'beaker-puppet_install_helper'
+gem 'metadata-json-lint'