diff --git a/browser/locales/en-US/chrome/browser/aboutDialog.dtd b/browser/locales/en-US/chrome/browser/aboutDialog.dtd
index f4ae83fed..e36e519a8 100644
--- a/browser/locales/en-US/chrome/browser/aboutDialog.dtd
+++ b/browser/locales/en-US/chrome/browser/aboutDialog.dtd
@@ -49,7 +49,7 @@
 <!ENTITY helpus.getInvolvedLink     "get involved!">
 <!ENTITY helpus.end                 "">
 
-<!ENTITY copyright.blurb            "Copyright © 2010-2021 Contributors to TenFourFox. All rights reserved.">
+<!ENTITY copyright.blurb            "Copyright © 2010-2022 Contributors to TenFourFox. All rights reserved.">
 
 <!-- LOCALIZATION NOTE (bottomLinks.license): This is a link title that links to about:license. -->
 <!ENTITY bottomLinks.license        "Licensing Information">