diff --git a/Rakefile b/Rakefile
index dd59e01..e1702ac 100644
--- a/Rakefile
+++ b/Rakefile
@@ -11,7 +11,7 @@ begin
     gem.homepage = "http://github.com/aberant/css-spriter"
     gem.authors = ["aberant", "tjennings"]
     gem.add_development_dependency "rspec" #, ">= 1.2.9"
-    gem.add_dependency "chunky_png", "~> 1.1.0"
+    gem.add_dependency "chunky_png", "~> 1.3.11"
     # gem is a Gem::Specification... see http://www.rubygems.org/read/chapter/20 for additional settings
   end
   Jeweler::GemcutterTasks.new
diff --git a/lib/css-spriter.rb b/lib/css-spriter.rb
index c9cda21..fa95caf 100644
--- a/lib/css-spriter.rb
+++ b/lib/css-spriter.rb
@@ -1,7 +1,7 @@
 require 'chunky_png'
-require 'css-spriter/sprite'
-require 'css-spriter/image'
-require 'css-spriter/directory_processor'
-require 'css-spriter/stylesheet_builder'
-require 'css-spriter/processor'
-require 'css-spriter/mtime_tracker'
+require_relative 'css-spriter/sprite'
+require_relative 'css-spriter/image'
+require_relative 'css-spriter/directory_processor'
+require_relative 'css-spriter/stylesheet_builder'
+require_relative 'css-spriter/processor'
+require_relative 'css-spriter/mtime_tracker'