diff --git a/Changelog.md b/Changelog.md
index 514c97cbb..b8e255977 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -6,6 +6,10 @@ suggestions, ideas and improvements to FriendlyId.
 * Table of Contents
 {:toc}
 
+## 3.1.1 (2011-12-12)
+
+* Fix for "can't modify frozen hash" on 3.1 ([Theo Cushion](https://github.com/theozaurus))
+
 ## 3.3.0 (2011-08-31)
 
 * Support for Active Record 2.3 dropped
diff --git a/lib/friendly_id/version.rb b/lib/friendly_id/version.rb
index d03ddf975..12c103466 100644
--- a/lib/friendly_id/version.rb
+++ b/lib/friendly_id/version.rb
@@ -2,8 +2,8 @@ module FriendlyId
   module Version
     MAJOR = 3
     MINOR = 3
-    TINY  = 0
-    BUILD = 1
+    TINY  = 1
+    BUILD = nil
     STRING = [MAJOR, MINOR, TINY, BUILD].compact.join('.')
   end
 end