diff --git a/build-constraints.yaml b/build-constraints.yaml
index 6f01e56c..06b6a4b0 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2038,6 +2038,7 @@ packages:
         - from-sum
         - hailgun
         - hailgun-simple
+        - highlight
         # - ig # bounds: http-conduit, transformers
         - natural-transformation
         - opaleye-trans