diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5fb3adc..d4a5d65 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,7 +1,13 @@
 # Changlog
 
 ## master (unreleased)
+
+## v4.3.1 - 18 Dec 2015
+  - SECURITY FIX: Normalize request paths when using ActionDispatch. Thanks
+    Andres Riancho at @includesecurity for reporting it.
   - Remove support for ruby 1.9.x
+  - Add Code of Conduct
+  - Several documentation and testing improvements
 
 ## v4.3.0 - 22 May 2015
 
diff --git a/lib/rack/attack/version.rb b/lib/rack/attack/version.rb
index e7a3735..97612cc 100644
--- a/lib/rack/attack/version.rb
+++ b/lib/rack/attack/version.rb
@@ -1,5 +1,5 @@
 module Rack
   class Attack
-    VERSION = '4.3.0'
+    VERSION = '4.3.1'
   end
 end