diff --git a/src/security/digest-sha256.cpp b/src/security/digest-sha256.cpp
index 6e37eb5..bbe2e10 100644
--- a/src/security/digest-sha256.cpp
+++ b/src/security/digest-sha256.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2013-2014 Regents of the University of California.
+ * Copyright (c) 2013-2015 Regents of the University of California.
  *
  * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
  *