diff --git a/Gemfile b/Gemfile
index c6f0ea3a75..ee85124dfe 100644
--- a/Gemfile
+++ b/Gemfile
@@ -26,7 +26,7 @@ gem 'sentry-raven'
 gem 'yard-sinatra',    git: 'https://github.com/rkh/yard-sinatra'
 gem 'rack-contrib', '>= 2.0.0'
 gem 'rack-cache',      git: 'https://github.com/rtomayko/rack-cache'
-gem 'rack-attack', '~> 5.4', '>= 5.4.2'
+gem 'rack-attack', '~> 6.7', '>= 6.7.0'
 gem 'gh', git: 'https://github.com/travis-ci/gh'
 gem 'bunny',           '~> 2.9.2'
 gem 'dalli'