diff --git a/build-constraints.yaml b/build-constraints.yaml
index 60984d44..898d2135 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3906,6 +3906,9 @@ packages:
     "Elben Shira <elben@shira.im> @elben":
         - pencil
 
+    "ARATA Mizuki <minorinoki@gmail.com> @minoki":
+        - unboxing-vector
+
     "Grandfathered dependencies":
         - Boolean
         - ChasingBottoms < 0 # due to QuickCheck, https://github.com/commercialhaskell/stackage/issues/4444