diff --git a/COPYING b/COPYING
index 162945e7d..1350547ff 100644
--- a/COPYING
+++ b/COPYING
@@ -2,21 +2,23 @@ HarfBuzz is licensed under the so-called "Old MIT" license.  Details follow.
 For parts of HarfBuzz that are licensed under different licenses see individual
 files names COPYING in subdirectories where applicable.
 
-Copyright © 2010,2011,2012,2013,2014,2015,2016,2017,2018,2019,2020  Google, Inc.
-Copyright © 2018,2019,2020  Ebrahim Byagowi
+Copyright © 2010-2022  Google, Inc.
+Copyright © 2015-2020  Ebrahim Byagowi
 Copyright © 2019,2020  Facebook, Inc.
-Copyright © 2012  Mozilla Foundation
+Copyright © 2012,2015  Mozilla Foundation
 Copyright © 2011  Codethink Limited
 Copyright © 2008,2010  Nokia Corporation and/or its subsidiary(-ies)
 Copyright © 2009  Keith Stribley
-Copyright © 2009  Martin Hosken and SIL International
+Copyright © 2011  Martin Hosken and SIL International
 Copyright © 2007  Chris Wilson
 Copyright © 2005,2006,2020,2021,2022,2023  Behdad Esfahbod
 Copyright © 2005  David Turner
-Copyright © 2004,2007,2008,2009,2010  Red Hat, Inc.
+Copyright © 2004,2007,2008,2009,2010,2013,2021,2022,2023  Red Hat, Inc.
 Copyright © 1998-2004  David Turner and Werner Lemberg
+Copyright © 2016  Igalia S.L.
 Copyright © 2022  Matthias Clasen
 Copyright © 2018,2021  Khaled Hosny
+Copyright © 2018,2019,2020  Adobe, Inc
 
 For full copyright notices consult the individual files in the package.