diff --git a/build-constraints.yaml b/build-constraints.yaml
index 9ab2361e..3986242c 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3200,6 +3200,7 @@ packages:
         # - hip # lens 4.16 via diagrams/chart
         - massiv
         - massiv-io
+        - massiv-scheduler
 
     "Hans-Peter Deifel <hpd@hpdeifel.de> @hpdeifel":
         - hledger-iadd