Gemfile in html-pipeline-2.7.2 vs Gemfile in html-pipeline-2.8.0

@@ -8,10 +8,10 @@
   gem 'bundler'
   gem 'rake'
 end
 
 group :test do
-  gem 'commonmarker', '~> 0.14', require: false
+  gem 'commonmarker', '~> 0.16', require: false
   gem 'email_reply_parser', '~> 0.5', require: false
   gem 'gemoji', '~> 2.0', require: false
   gem 'minitest'
   gem 'RedCloth',           '~> 4.2.9', require: false
   gem 'rinku',              '~> 1.7',   require: false