diff --git a/src/display-console.cc b/src/display-console.cc
index dea7f8bb..5316b761 100644
--- a/src/display-console.cc
+++ b/src/display-console.cc
@@ -6,7 +6,7 @@
  *
  * Copyright (C) 2018 François Revol et al.
  * Copyright (c) 2004, Hannu Saransaari and Lauri Hakkarainen
- * Copyright (c) 2005-2019 Brenden Matthews, Philip Kovacs, et. al.
+ * Copyright (c) 2005-2021 Brenden Matthews, Philip Kovacs, et. al.
  *	(see AUTHORS)
  * All rights reserved.
  *
diff --git a/src/display-file.cc b/src/display-file.cc
index 28dfe35e..cf3f440b 100644
--- a/src/display-file.cc
+++ b/src/display-file.cc
@@ -6,7 +6,7 @@
  *
  * Copyright (C) 2018 François Revol et al.
  * Copyright (c) 2004, Hannu Saransaari and Lauri Hakkarainen
- * Copyright (c) 2005-2019 Brenden Matthews, Philip Kovacs, et. al.
+ * Copyright (c) 2005-2021 Brenden Matthews, Philip Kovacs, et. al.
  *	(see AUTHORS)
  * All rights reserved.
  *
diff --git a/src/display-http.cc b/src/display-http.cc
index 2b00deed..3a973baf 100644
--- a/src/display-http.cc
+++ b/src/display-http.cc
@@ -6,7 +6,7 @@
  *
  * Copyright (C) 2018 François Revol et al.
  * Copyright (c) 2004, Hannu Saransaari and Lauri Hakkarainen
- * Copyright (c) 2005-2019 Brenden Matthews, Philip Kovacs, et. al.
+ * Copyright (c) 2005-2021 Brenden Matthews, Philip Kovacs, et. al.
  *	(see AUTHORS)
  * All rights reserved.
  *
diff --git a/src/display-http.hh b/src/display-http.hh
index 841cd2ca..0fb9465f 100644
--- a/src/display-http.hh
+++ b/src/display-http.hh
@@ -4,7 +4,7 @@
  *
  * Please see COPYING for details
  *
- * Copyright (C) 2018 François Revol et al.
+ * Copyright (C) 2018-2021 François Revol et al.
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
diff --git a/src/display-ncurses.cc b/src/display-ncurses.cc
index 0208d8b3..d6b77eb6 100644
--- a/src/display-ncurses.cc
+++ b/src/display-ncurses.cc
@@ -6,7 +6,7 @@
  *
  * Copyright (C) 2018 François Revol et al.
  * Copyright (c) 2004, Hannu Saransaari and Lauri Hakkarainen
- * Copyright (c) 2005-2019 Brenden Matthews, Philip Kovacs, et. al.
+ * Copyright (c) 2005-2021 Brenden Matthews, Philip Kovacs, et. al.
  *	(see AUTHORS)
  * All rights reserved.
  *
diff --git a/src/display-output.cc b/src/display-output.cc
index fec72189..392010ae 100644
--- a/src/display-output.cc
+++ b/src/display-output.cc
@@ -6,7 +6,7 @@
  *
  * Copyright (C) 2018 François Revol et al.
  * Copyright (c) 2004, Hannu Saransaari and Lauri Hakkarainen
- * Copyright (c) 2005-2019 Brenden Matthews, Philip Kovacs, et. al.
+ * Copyright (c) 2005-2021 Brenden Matthews, Philip Kovacs, et. al.
  *	(see AUTHORS)
  * All rights reserved.
  *
diff --git a/src/display-x11.cc b/src/display-x11.cc
index de9d3b8c..1469e2b3 100644
--- a/src/display-x11.cc
+++ b/src/display-x11.cc
@@ -4,9 +4,9 @@
  *
  * Please see COPYING for details
  *
- * Copyright (C) 2018-2020 François Revol et al.
+ * Copyright (C) 2018-2021 François Revol et al.
  * Copyright (c) 2004, Hannu Saransaari and Lauri Hakkarainen
- * Copyright (c) 2005-2020 Brenden Matthews, Philip Kovacs, et. al.
+ * Copyright (c) 2005-2021 Brenden Matthews, Philip Kovacs, et. al.
  *	(see AUTHORS)
  * All rights reserved.
  *
diff --git a/src/display-x11.hh b/src/display-x11.hh
index 09c0789a..2a3632aa 100644
--- a/src/display-x11.hh
+++ b/src/display-x11.hh
@@ -4,7 +4,7 @@
  *
  * Please see COPYING for details
  *
- * Copyright (C) 2018 François Revol et al.
+ * Copyright (C) 2018-2021 François Revol et al.
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by