diff --git a/build-constraints.yaml b/build-constraints.yaml
index 93944f98..354c540b 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -5177,7 +5177,7 @@ packages:
         - formatn
         - friendly-time
         - functor-classes-compat
-        - functor-combinators
+        - functor-combinators < 0 # https://github.com/mstksg/functor-combinators/issues/7
         - fuzzcheck
         - generic-arbitrary
         - generically