diff --git a/COPYING b/COPYING
index b5c7744..35c7efc 100644
--- a/COPYING
+++ b/COPYING
@@ -1,4 +1,4 @@
-Copyright (c) 2011-2020 Matthew Petroff
+Copyright (c) 2011-2021 Matthew Petroff
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of
 this software and associated documentation files (the "Software"), to deal in
diff --git a/src/js/libpannellum.js b/src/js/libpannellum.js
index 2d1027d..880c81f 100644
--- a/src/js/libpannellum.js
+++ b/src/js/libpannellum.js
@@ -1,6 +1,6 @@
 /*
  * libpannellum - A WebGL and CSS 3D transform based Panorama Renderer
- * Copyright (c) 2012-2020 Matthew Petroff
+ * Copyright (c) 2012-2021 Matthew Petroff
  * 
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
diff --git a/src/js/pannellum.js b/src/js/pannellum.js
index 42c8ecf..575442c 100644
--- a/src/js/pannellum.js
+++ b/src/js/pannellum.js
@@ -1,6 +1,6 @@
 /*
  * Pannellum - An HTML5 based Panorama Viewer
- * Copyright (c) 2011-2020 Matthew Petroff
+ * Copyright (c) 2011-2021 Matthew Petroff
  * 
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
diff --git a/utils/multires/generate.py b/utils/multires/generate.py
index 00e1eb6..bd1cbc6 100755
--- a/utils/multires/generate.py
+++ b/utils/multires/generate.py
@@ -5,7 +5,7 @@
 
 # generate.py - A multires tile set generator for Pannellum
 # Extensions to cylindrical input and partial panoramas by David von Oheimb
-# Copyright (c) 2014-2020 Matthew Petroff
+# Copyright (c) 2014-2021 Matthew Petroff
 # 
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal