diff --git a/AUTHORS b/AUTHORS
index 59d027e..8454413 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -12,6 +12,7 @@ Abhishek Dasgupta <abhi2743@gmail.com>
 Abhishek Parmar <abhishek@orng.net>
 Brian Silverman <bsilver16384@gmail.com>
 Google Inc.
+Guillaume Dumont <dumont.guillaume@gmail.com>
 Michael Tanner <michael@tannertaxpro.com>
 romange <romange@users.noreply.github.com>
 Sergiu Dotenco <sergiu.dotenco@th-nuernberg.de>
diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index bf413f8..20e9805 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -26,6 +26,7 @@ Abhishek Dasgupta <abhi2743@gmail.com>
 Abhishek Parmar <abhishek@orng.net>
 Brian Silverman <bsilver16384@gmail.com>
 Fumitoshi Ukai <ukai@google.com>
+Guillaume Dumont <dumont.guillaume@gmail.com>
 Håkan L. S. Younes <hyounes@google.com>
 Ivan Penkov <ivanpe@google.com>
 Michael Tanner <michael@tannertaxpro.com>