diff --git a/build-constraints.yaml b/build-constraints.yaml
index 08c93f3d..31243bbd 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -991,7 +991,7 @@ packages:
         - xml-to-json-fast
         - digits
 
-    "Tim Baumann <tim@timbaumann.info> @timjb":
+    "Mateusz Kowalczyk <fuuzetsu@fuuzetsu.co.uk> @Fuuzetsu":
         - aeson-schema
 
     "David Fox <dsf@seereason.com> @ddssff":