diff --git a/CHANGELOG.rdoc b/CHANGELOG.rdoc
index 3667539c..cd9ab3b5 100644
--- a/CHANGELOG.rdoc
+++ b/CHANGELOG.rdoc
@@ -1,3 +1,5 @@
+== 0.5.1
+
 * enhancements
 	* Added serializers based on Warden ones
 	* Allow authentication keys to be set
@@ -15,7 +17,7 @@
 == 0.4.3
 
 * bug fix
-  * [#29] Authentication fail if user cannot be serialized from session;
+  * [#29] Authentication just fails if user cannot be serialized from session, without raising errors;
   * Default configuration values should not overwrite user values;
 
 == 0.4.2
diff --git a/Rakefile b/Rakefile
index 88bb85d0..f1a2f373 100644
--- a/Rakefile
+++ b/Rakefile
@@ -36,7 +36,7 @@ begin
     s.description = "Flexible authentication solution for Rails with Warden"
     s.authors = ['José Valim', 'Carlos Antônio']
     s.files =  FileList["[A-Z]*", "{app,config,generators,lib}/**/*", "init.rb"]
-    s.add_dependency("warden", "~> 0.5.2")
+    s.add_dependency("warden", "~> 0.6.0")
   end
 
   Jeweler::GemcutterTasks.new
diff --git a/lib/devise/version.rb b/lib/devise/version.rb
index 519e2c28..bc4dba55 100644
--- a/lib/devise/version.rb
+++ b/lib/devise/version.rb
@@ -1,3 +1,3 @@
 module Devise
-  VERSION = "0.5.0".freeze
+  VERSION = "0.5.1".freeze
 end