diff --git a/about.html b/about.html
index 5a4cec886..f00c5127e 100644
--- a/about.html
+++ b/about.html
@@ -44,7 +44,7 @@
Copyright © 2006-2011 Ricardo Garcia Gonzalez
-Copyright © 2011-2020 youtube-dl developers
+Copyright © 2011-2021 youtube-dl developers