diff --git a/include/polarssl/des.h b/include/polarssl/des.h
index 05b904b..1ca87c1 100644
--- a/include/polarssl/des.h
+++ b/include/polarssl/des.h
@@ -3,7 +3,7 @@
  *
  * \brief DES block cipher
  *
- *  Copyright (C) 2006-2013, ARM Limited, All Rights Reserved
+ *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
  *
  *  This file is part of mbed TLS (https://polarssl.org)
  *