diff --git a/build-constraints.yaml b/build-constraints.yaml
index 578aef05..a8e91051 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -24,7 +24,7 @@ packages:
         # - opencv-extra
 
     "Pasqualino Assini <tittoassini@gmail.com> @tittoassini":
-        # - zm # https://github.com/ndmitchell/derive/issues/25
+        - zm
         # - flat # https://github.com/ndmitchell/derive/issues/25
         - model