diff --git a/lib/ruby-github.rb b/lib/ruby-github.rb
index 90bb1ef..f0c8a68 100644
--- a/lib/ruby-github.rb
+++ b/lib/ruby-github.rb
@@ -1,7 +1,7 @@
 require 'rubygems'
 require 'json'
 require 'open-uri'
-require 'mash'
+require 'hashie'
 
 module GitHub
   class API
@@ -32,13 +32,13 @@ def self.commit(user,repository,commit)
     end
   end
   
-  class Repository < Mash
+  class Repository < Hashie::Mash
     def commits
       ::GitHub::API.commits(user,name)
     end
   end
   
-  class User < Mash
+  class User < Hashie::Mash
     def initialize(hash = nil)
       @user = hash["login"] if hash
       super
@@ -49,7 +49,7 @@ def repositories=(repo_array)
     end
   end
   
-  class Commit < Mash
+  class Commit < Hashie::Mash
     # if a method only available to a detailed commit is called,
     # automatically fetch it from the API
     def detailed
diff --git a/ruby-github.gemspec b/ruby-github.gemspec
index 584242d..7c99a0b 100644
--- a/ruby-github.gemspec
+++ b/ruby-github.gemspec
@@ -11,5 +11,5 @@ Gem::Specification.new do |s|
   s.files = ["History.txt", "Manifest.txt", "README.txt", "Rakefile", "ruby-github.gemspec", "lib/ruby-github.rb"]
   s.rdoc_options = ["--main", "README.txt"]
   s.extra_rdoc_files = ["History.txt", "Manifest.txt", "README.txt"]
-  s.add_dependency("mbleigh-mash", [">= 0.0.5"])
+  s.add_dependency("hashie", [">= 1.0.0"])
 end
\ No newline at end of file