diff --git a/build-constraints.yaml b/build-constraints.yaml
index 9857c9f2..807a6d55 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4405,7 +4405,7 @@ packages:
         - json-rpc-client
 
     "Magnus Therning <magnus@therning.org> @magthe":
-        - hsini
+        - hsini < 0 # https://github.com/magthe/hsini/issues/25
 
     "Baojun Wang <wangbj@gmail.com> @wangbj":
         - elf