diff --git a/temp_file/Gemfile b/temp_file/Gemfile
index 9340d44..9ed9f41 100644
--- a/temp_file/Gemfile
+++ b/temp_file/Gemfile
@@ -32,6 +32,7 @@ if RUBY_VERSION.to_f <= 2.1
   gem 'webrick', '1.3.1'
   gem 'httparty', '0.19.1'
 else
+  gem 'rack-protection', '2.2.2'
   gem 'addressable'
   gem 'concurrent-ruby'
   gem 'signet'