diff --git a/pasn1.py b/pasn1.py
index 5a40b09..f56ba11 100644
--- a/pasn1.py
+++ b/pasn1.py
@@ -12,10 +12,10 @@ MUST NOT be used.  The shorted form of length encoding MUST be used.
 A longer length encoding MUST be rejected.'''
 
 __author__ = 'John-Mark Gurney'
-__copyright__ = 'Copyright 2016-2019 John-Mark Gurney.  All rights reserved.'
+__copyright__ = 'Copyright 2016-2020 John-Mark Gurney.  All rights reserved.'
 __license__ = '2-clause BSD license'
 
-# Copyright 2016-2019, John-Mark Gurney
+# Copyright 2016-2020, John-Mark Gurney
 # All rights reserved.
 # 
 # Redistribution and use in source and binary forms, with or without