diff --git a/lib/iiif/hash_behaviours.rb b/lib/iiif/hash_behaviours.rb
index 5af90bc..1c41020 100644
--- a/lib/iiif/hash_behaviours.rb
+++ b/lib/iiif/hash_behaviours.rb
@@ -1,5 +1,4 @@
 require 'forwardable'
-require File.join(File.dirname(__FILE__), '../active_support/ordered_hash')
 
 module IIIF
   module HashBehaviours
diff --git a/lib/iiif/presentation.rb b/lib/iiif/presentation.rb
index 482f262..29ea68e 100644
--- a/lib/iiif/presentation.rb
+++ b/lib/iiif/presentation.rb
@@ -1,5 +1,4 @@
 require File.join(File.dirname(__FILE__), 'service')
-require File.join(File.dirname(__FILE__), 'hash_behaviours')
 %w{
 abstract_resource
   annotation
@@ -15,7 +14,6 @@
 }.each do |f|
   require File.join(File.dirname(__FILE__), 'presentation', f)
 end
-require File.join(File.dirname(__FILE__), '../active_support/ordered_hash')
 
 module IIIF
   module Presentation
diff --git a/lib/iiif/service.rb b/lib/iiif/service.rb
index 8cb9a49..c00671b 100644
--- a/lib/iiif/service.rb
+++ b/lib/iiif/service.rb
@@ -1,5 +1,4 @@
 require File.join(File.dirname(__FILE__), 'hash_behaviours')
-require File.join(File.dirname(__FILE__), '../active_support/ordered_hash')
 require 'active_support/ordered_hash'
 require 'active_support/inflector'
 require 'json'