diff --git a/lib/rack/attack.rb b/lib/rack/attack.rb
index 4511e99..d98c08d 100644
--- a/lib/rack/attack.rb
+++ b/lib/rack/attack.rb
@@ -1,9 +1,10 @@
 require 'rack'
 module Rack::Attack
-  require 'rack/attack/cache'
-  require 'rack/attack/throttle'
-  require 'rack/attack/whitelist'
-  require 'rack/attack/blacklist'
+  autoload :Cache,     'rack/attack/cache'
+  autoload :Check,     'rack/attack/check'
+  autoload :Throttle,  'rack/attack/throttle'
+  autoload :Whitelist, 'rack/attack/whitelist'
+  autoload :Blacklist, 'rack/attack/blacklist'
 
   class << self
 
diff --git a/lib/rack/attack/blacklist.rb b/lib/rack/attack/blacklist.rb
index 452d51d..4d2f666 100644
--- a/lib/rack/attack/blacklist.rb
+++ b/lib/rack/attack/blacklist.rb
@@ -1,4 +1,3 @@
-require_relative 'check'
 module Rack
   module Attack
     class Blacklist < Check
diff --git a/lib/rack/attack/whitelist.rb b/lib/rack/attack/whitelist.rb
index 0d5f3b1..cd2699b 100644
--- a/lib/rack/attack/whitelist.rb
+++ b/lib/rack/attack/whitelist.rb
@@ -1,4 +1,3 @@
-require_relative 'check'
 module Rack
   module Attack
     class Whitelist < Check