diff --git a/gollum.gemspec b/gollum.gemspec
index a9796213..4712ca94 100644
--- a/gollum.gemspec
+++ b/gollum.gemspec
@@ -5,8 +5,8 @@ Gem::Specification.new do |s|
   s.required_ruby_version = '>= 1.9'
 
   s.name              = 'gollum'
-  s.version           = '3.1.3'
-  s.date              = '2015-04-04'
+  s.version           = '4.0.0'
+  s.date              = '2015-04-11'
   s.rubyforge_project = 'gollum'
   s.license           = 'MIT'
 
diff --git a/lib/gollum.rb b/lib/gollum.rb
index 71196023..55b81ca6 100644
--- a/lib/gollum.rb
+++ b/lib/gollum.rb
@@ -16,7 +16,7 @@ require File.expand_path('../gollum/uri_encode_component', __FILE__)
 $KCODE = 'U' if RUBY_VERSION[0, 3] == '1.8'
 
 module Gollum
-  VERSION = '3.1.3'
+  VERSION = '4.0.0'
 
   def self.assets_path
     ::File.expand_path('gollum/public', ::File.dirname(__FILE__))