diff --git a/CHANGES.txt b/CHANGES.txt
index f8b2156..46fb0e1 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -4,6 +4,8 @@
   ZOOKEEPER-1376. zkServer.sh does not correctly check for
   $SERVER_JVMFLAGS (Skye W-M via henryr)
 
+  ZOOKEEPER-1581. change copyright in notice to 2012 (breed via phunt)
+
 Release 3.3.6 - 2012-08-01
 Backward compatible changes:
 
diff --git a/NOTICE.txt b/NOTICE.txt
index 9c9e95a..35add96 100644
--- a/NOTICE.txt
+++ b/NOTICE.txt
@@ -1,5 +1,5 @@
 Apache ZooKeeper
-Copyright 2009 The Apache Software Foundation
+Copyright 2009-2012 The Apache Software Foundation
 
 This product includes software developed at
 The Apache Software Foundation (http://www.apache.org/).