Gemfile in puppet-repl-0.3.0 vs Gemfile in puppet-repl-0.3.1

@@ -2,9 +2,11 @@
 gem 'puppet', ENV['PUPPET_GEM_VERSION'] || ">= 3.8"
 gem 'facterdb', "~> 0.3"
 gem 'awesome_print', "~> 1.6"
 
 group :test do
+  # ruby versions prior to 2.0 cannot install json_pure 2.0.2+
+  gem 'json_pure', '<= 2.0.1'
   gem "rdoc", "~> 3.12"
   gem "rspec"
   gem "bundler"
   gem "simplecov", ">= 0"
   gem 'rake'