diff --git a/build-constraints.yaml b/build-constraints.yaml
index 2f1a8c98..630364ba 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1492,6 +1492,7 @@ packages:
         - tagged-binary
         - typelits-witnesses
         - uncertain
+        - vector-sized
 
     "Ian Duncan <ian@iankduncan.com> @iand675":
         - feature-flags