diff --git a/LICENSE-MIT b/LICENSE-MIT
index e91db966..cfd32379 100644
--- a/LICENSE-MIT
+++ b/LICENSE-MIT
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (C) 2018-2020 by the respective authors
+Copyright (C) 2018-2021 by the respective authors
 
 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/update_copyright.rb b/utils/update_copyright.rb
index 2d56fd81..c86d8ac3 100755
--- a/utils/update_copyright.rb
+++ b/utils/update_copyright.rb
@@ -13,8 +13,5 @@ files = files.join(' ')
 
 year = Date.today.year
 
-# Update "Copyright (c) 20..-20.."
-`sed -i -- 's,\\(Copyright .c. 20..\\)-20..,\\1-#{year},g' #{files}`
-
-# Update "Copyright (c) 20.. Name" -> "Copyright (c) 20..-20.. Name"
-`sed -i -- 's,\\(Copyright .c. 20..\\) ,\\1-#{year} ,g' #{files}`
+`sed -i -- 's,\\(Copyright .* 20..\\)-20..,\\1-#{year},g' #{files}`
+`sed -i -- 's,\\(Copyright .* #{year - 1}\\) ,\\1-#{year} ,g' #{files}`