diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index 2a35e30..55cf160 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -15,20 +15,26 @@ Copyright (c) 2021      Anton Blanchard <anton@ozlabs.org>
 Copyright (c) 2019      Antony Pavlov <antonynpavlov@gmail.com>
 Copyright (c) 2019-2020 Benjamin Herrenschmidt <benh@kernel.crashing.org>
 Copyright (c) 2018      bunnie <bunnie@kosagi.com>
+Copyright (c) 2021      Christian Klarhorst <cklarhor@techfak.uni-bielefeld.de>
 Copyright (c) 2021      Craig Bishop <craig@craigjb.com>
 Copyright (c) 2018-2020 David Shah <dave@ds0.me>
 Copyright (c) 2020      Drew Fustini <drew@pdp7.com>
 Copyright (c) 2019      Ewout ter Hoeven <E.M.terHoeven@student.tudelft.nl>
 Copyright (c) 2018      Felix Held <felix-github@felixheld.de>
-Copyright (c) 2015-2021 Florent Kermarrec <florent@enjoy-digital.fr>
+Copyright (c) 2015-2022 Florent Kermarrec <florent@enjoy-digital.fr>
 Copyright (c) 2019-2021 Gabriel L. Somlo <gsomlo@gmail.com>
 Copyright (c) 2021      Gary Wong <gtw@gnu.org>
 Copyright (c) 2020      Greg Davill <greg.davill@gmail.com>
 Copyright (c) 2019      gruetzkopf <martin@gruetzkopf.org>
+Copyright (c) 2021      Hans Baier <hansfbaier@gmail.com>
 Copyright (c) 2019      Ilia Sergachev <ilia.sergachev@pm.me>
-Copyright (c) 2020-2021 Antmicro <Antmicro.com>
+Copyright (c) 2021      Jean-François Nguyen <jf@lambdaconcept.com>
+Copyright (c) 2018      john@csquare.ca <john@csquare.ca>
+Copyright (c) 2022      John Simons <jammsimons@gmail.com>
+Copyright (c) 2020-2022 Antmicro <Antmicro.com>
 Copyright (c) 2018      John Sully <john@csquare.ca>
 Copyright (c) 2020      Mark <mstandke@cern.ch>
+Copyright (c) 2021      Matt Johnston <matt@codeconstruct.com.au>
 Copyright (c) 2020      Nathaniel R. Lewis <linux.robotdude@gmail.com>
 Copyright (c) 2020      Owen Kirby <oskirby@gmail.com>
 Copyright (c) 2020      Michael Welling <mwelling@ieee.org>
@@ -37,5 +43,6 @@ Copyright (c) 2015      Sebastien Bourdeauducq <sb@m-labs.hk>
 Copyright (c) 2020      Stefan Schrijvers <ximin@ximinity.net>
 Copyright (c) 2019      Steve Haynal - VSD Engineering <shaynal@hitblade004.wv.mentorg.com>
 Copyright (c) 2016-2018 Tim 'mithro' Ansell <me@mith.ro>
+Copyright (c) 2021      tongchen126 <tongchen126@gmail.com>
 Copyright (c) 2021      Vamsi Vytla <vamsi.vytla@gmail.com>
 Copyright (c) 2020      Xiretza <xiretza@xiretza.xyz>