Update date in copyright line
diff --git a/programs/util/pem2der.c b/programs/util/pem2der.c
index d43d446..18eb070 100644
--- a/programs/util/pem2der.c
+++ b/programs/util/pem2der.c
@@ -1,7 +1,7 @@
/*
* Convert PEM to DER
*
- * 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://tls.mbed.org)
*
diff --git a/programs/util/strerror.c b/programs/util/strerror.c
index 2215f07..4b7611a 100644
--- a/programs/util/strerror.c
+++ b/programs/util/strerror.c
@@ -1,7 +1,7 @@
/*
* Translate error code to error string
*
- * Copyright (C) 2006-2012, ARM Limited, All Rights Reserved
+ * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
*
* This file is part of mbed TLS (https://tls.mbed.org)
*