Gemfile in draper-4.0.1 vs Gemfile in draper-4.0.2

@@ -15,9 +15,10 @@
   gem "activerecord-jdbcsqlite3-adapter"
 end
 
 if RUBY_VERSION >= "2.5.0"
   gem "rails", "~> 6.0"
+  gem 'webrick'
 else
   gem "rails", "~> 5.0"
 end
 gem "mongoid", github: "mongodb/mongoid"