Gemfile in devise-2.2.8 vs Gemfile in devise-3.0.0.rc

@@ -1,10 +1,10 @@
 source "https://rubygems.org"
 
 gemspec
 
-gem "rails", "~> 3.2.6"
+gem "rails", "~> 4.0.0.rc1"
 gem "omniauth", "~> 1.0.0"
 gem "omniauth-oauth2", "~> 1.0.0"
 gem "rdoc"
 
 group :test do
@@ -22,11 +22,10 @@
 
 platforms :ruby do
   gem "sqlite3"
 end
 
-
-platforms :mri_19 do
+platforms :mri_19, :mri_20 do
   group :mongoid do
-    gem "mongoid", "~> 3.0"
+    gem "mongoid", github: "mongoid/mongoid", branch: "master"
   end
 end