diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index 562c49f..6c87cb0 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -13,11 +13,14 @@ Copyright (c) 2019 Ambroz Bizjak <abizjak.pro@gmail.com>
 Copyright (c) 2019 Antony Pavlov <antonynpavlov@gmail.com>
 Copyright (c) 2018 bunnie <bunnie@kosagi.com>
 Copyright (c) 2018-2019 David Shah <dave@ds0.me>
+Copyright (c) 2019 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) 2015-2019 Florent Kermarrec <florent@enjoy-digital.fr>
 Copyright (c) 2019 Gabriel L. Somlo <gsomlo@gmail.com>
 Copyright (c) 2018 John Sully <john@csquare.ca>
 Copyright (c) 2019 Mateusz Holenko <mholenko@antmicro.com>
+Copyright (c) 2019 Michael Welling <mwelling@ieee.org>
+Copyright (c) 2019 Pierre-Olivier Vauboin <po@lambdaconcept>
 Copyright (c) 2015 Sebastien Bourdeauducq <sb@m-labs.hk>
 Copyright (c) 2016-2016 Tim 'mithro' Ansell <me@mith.ro>