diff --git a/setup.py b/setup.py
index 4f56472..cca38cf 100755
--- a/setup.py
+++ b/setup.py
@@ -2,7 +2,7 @@
 #
 # tractor: a trionic actor model built on `multiprocessing` and `trio`
 #
-# Copyright (C) 2018  Tyler Goodlet
+# Copyright (C) 2018-2020  Tyler Goodlet
 
 # 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