diff --git a/build-constraints.yaml b/build-constraints.yaml
index ff87d8e2..7e94bc14 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3255,6 +3255,7 @@ packages:
     "Alexander Ignatyev <ignatyev.alexander@gmail.com> @alexander-ignatyev":
         - astro
         - mltool
+        - hmatrix-morpheus
 
     "Edward Amsden <edwardamsden@gmail.com> @eamsden":
         - h2c