diff --git a/doc/docs/License_and_Copyright.md b/doc/docs/License_and_Copyright.md
index b96e576f4..12105e9ef 100644
--- a/doc/docs/License_and_Copyright.md
+++ b/doc/docs/License_and_Copyright.md
@@ -2,7 +2,7 @@
 # License and Copyright
 ---
 
-Meep is copyright © 2005–2020, Massachusetts Institute of Technology.
+Meep is copyright © 2005–2021, Massachusetts Institute of Technology.
 
 Meep is free software. You can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or at your option any later version.
 
diff --git a/python/tests/physical.py b/python/tests/physical.py
index 38470b8ea..25b873187 100644
--- a/python/tests/physical.py
+++ b/python/tests/physical.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2005-2017 Massachusetts Institute of Technology
+# Copyright (C) 2005-2021 Massachusetts Institute of Technology
 #
 #  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/scheme/Makefile.am b/scheme/Makefile.am
index a5b71846a..ea43aa070 100644
--- a/scheme/Makefile.am
+++ b/scheme/Makefile.am
@@ -56,7 +56,7 @@ meep-enums.scm: meep_enum_renames.i
 ##############################################################################
 
 # what is printed out when invoking your program with --version:
-VERSION_STRING = "Meep @VERSION@, Copyright (C) 2005-2020 Massachusetts Institute of Technology."
+VERSION_STRING = "Meep @VERSION@, Copyright (C) 2005-2021 Massachusetts Institute of Technology."
 
 MY_DEFS = -DHAVE_CTL_HOOKS=1 -DHAVE_CTL_EXPORT_HOOK=1
 
diff --git a/src/meep/mympi.hpp b/src/meep/mympi.hpp
index b32bd97a7..6abdbce38 100644
--- a/src/meep/mympi.hpp
+++ b/src/meep/mympi.hpp
@@ -1,5 +1,5 @@
 // -*- C++ -*-
-/* Copyright (C) 2005-2020 Massachusetts Institute of Technology
+/* Copyright (C) 2005-2021 Massachusetts Institute of Technology
 %
 %  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/meep/vec.hpp b/src/meep/vec.hpp
index a24585a34..9ff3fa70e 100644
--- a/src/meep/vec.hpp
+++ b/src/meep/vec.hpp
@@ -1,5 +1,5 @@
 // -*- C++ -*-
-/* Copyright (C) 2005-2020 Massachusetts Institute of Technology
+/* Copyright (C) 2005-2021 Massachusetts Institute of Technology
 %
 %  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