diff --git a/build-constraints.yaml b/build-constraints.yaml
index ef165055..499fa63a 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1926,6 +1926,9 @@ packages:
         - polynomials-bernstein
         - typography-geometry
 
+    "John MacFarlane <jgm@berkeley.edu> @jgm":
+        - hsb2hs
+
     # If you stop maintaining a package you can move it here.
     # It will then be disabled if it starts causing problems.
     "Abandoned packages":