diff --git a/build-constraints.yaml b/build-constraints.yaml
index c33a1cc7..71e50e8b 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -7302,6 +7302,9 @@ packages:
         # https://github.com/commercialhaskell/stackage/issues/6638
         - invariant < 0.6
 
+        # https://github.com/commercialhaskell/stackage/issues/6669
+        - enummapset < 0.7.0.0
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of