diff --git a/build-constraints.yaml b/build-constraints.yaml
index 7d2966a6..828c820d 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -414,6 +414,7 @@ packages:
         - streams
         - tagged
         - trifecta
+        - unique
         - vector-instances
         - void
         - wl-pprint-extras