diff --git a/lib/dns/diff.c b/lib/dns/diff.c
index 0c3d93169c..713a90fe01 100644
--- a/lib/dns/diff.c
+++ b/lib/dns/diff.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2000-2005, 2007-2009, 2011, 2013-2017  Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2000-2005, 2007-2009, 2011, 2013-2018  Internet Systems Consortium, Inc. ("ISC")
  *
  * This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/lib/dns/ipkeylist.c b/lib/dns/ipkeylist.c
index be6d8a7b88..f51a2de72d 100644
--- a/lib/dns/ipkeylist.c
+++ b/lib/dns/ipkeylist.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2016  Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2016, 2018  Internet Systems Consortium, Inc. ("ISC")
  *
  * This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
diff --git a/lib/dns/tests/dispatch_test.c b/lib/dns/tests/dispatch_test.c
index 0b40256f86..193b29f4d4 100644
--- a/lib/dns/tests/dispatch_test.c
+++ b/lib/dns/tests/dispatch_test.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2012, 2014, 2016  Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (C) 2012, 2014, 2016, 2018  Internet Systems Consortium, Inc. ("ISC")
  *
  * This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this