diff --git a/build-constraints.yaml b/build-constraints.yaml
index be0aed25..ea8f4621 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2111,7 +2111,7 @@ packages:
     "Michael Thompson <what_is_it_to_do_anything@yahoo.com> @michaelt":
         - pipes-text < 0 # GHC 8.4 via streaming-commons-0.2.0.0
         - lens-simple < 0 # via lens-family-2.0.0
-        - lens-family-core # 2.1.0 #https://github.com/commercialhaskell/stackage/issues/5182
+        - lens-family-core < 2.1.0 #https://github.com/commercialhaskell/stackage/issues/5182
         - lens-family # 2.1.0 #https://github.com/commercialhaskell/stackage/issues/5182
 
     "Justin Le <justin@jle.im> @mstksg":