diff --git a/build-constraints.yaml b/build-constraints.yaml
index 9f940746..ed34068d 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4834,9 +4834,6 @@ packages:
         # https://github.com/commercialhaskell/stackage/issues/4829
         - safecopy < 0.10
 
-        # https://github.com/commercialhaskell/stackage/issues/4831
-        - first-class-families < 0.6
-
         # https://github.com/commercialhaskell/stackage/issues/4832
         - path-io < 1.5