diff --git a/build-constraints.yaml b/build-constraints.yaml
index d9c58b95..da883375 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -53,7 +53,7 @@ packages:
         - opencv-extra < 0 # hard to install build tools
 
     "Pasqualino Assini <tittoassini@gmail.com> @tittoassini":
-        - zm >= 0.3
+        - zm
         - flat
         - model