diff --git a/README b/README
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--- a/README
+++ b/README
@@ -158,6 +158,8 @@ If I forgot any credit (and I probably have), please contact me (mail below) to
 
 Salut à Toi has received contributions from:
 
+- Adrien Cossa aka souliane <souliane@mailoo.org>: chat states, several core improvments. He's going to be a main developer.
+
 - Adrien Vigneron <adrienvigneron@mailoo.org>: huge work on Libervia's CSS, SàT Logo (the mascot is its work), and Quiz game graphisms. He's friendly and talented, his work is really appreciated.
 
 - Xavier Maillard <xavier@maillard.im>: bugs fixes. He's following the project for a while, maybe a future frontend contributor ?