diff --git a/minindn/helpers/experiment.py b/minindn/helpers/experiment.py
index 226684e..a29272a 100644
--- a/minindn/helpers/experiment.py
+++ b/minindn/helpers/experiment.py
@@ -1,6 +1,6 @@
 # -*- Mode:python; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
 #
-# Copyright (C) 2015-2019, The University of Memphis,
+# Copyright (C) 2015-2020, The University of Memphis,
 #                          Arizona Board of Regents,
 #                          Regents of the University of California.
 #
diff --git a/minindn/helpers/ndnpingclient.py b/minindn/helpers/ndnpingclient.py
index 8220a2d..37b63db 100644
--- a/minindn/helpers/ndnpingclient.py
+++ b/minindn/helpers/ndnpingclient.py
@@ -1,6 +1,6 @@
 # -*- Mode:python; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
 #
-# Copyright (C) 2015-2019, The University of Memphis,
+# Copyright (C) 2015-2020, The University of Memphis,
 #                          Arizona Board of Regents,
 #                          Regents of the University of California.
 #
diff --git a/minindn/helpers/nfdc.py b/minindn/helpers/nfdc.py
index 4a9ebf2..16dabb8 100644
--- a/minindn/helpers/nfdc.py
+++ b/minindn/helpers/nfdc.py
@@ -1,6 +1,6 @@
 # -*- Mode:python; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
 #
-# Copyright (C) 2015-2019, The University of Memphis,
+# Copyright (C) 2015-2020, The University of Memphis,
 #                          Arizona Board of Regents,
 #                          Regents of the University of California.
 #
diff --git a/minindn/helpers/process_monitor.py b/minindn/helpers/process_monitor.py
index 4fa3738..a202965 100644
--- a/minindn/helpers/process_monitor.py
+++ b/minindn/helpers/process_monitor.py
@@ -1,6 +1,6 @@
 # -*- Mode:python; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
 #
-# Copyright (C) 2015-2019, The University of Memphis,
+# Copyright (C) 2015-2020, The University of Memphis,
 #                          Arizona Board of Regents,
 #                          Regents of the University of California.
 #