diff --git a/build-constraints.yaml b/build-constraints.yaml
index 8b23523a..75793d9d 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3195,7 +3195,7 @@ packages:
         - genvalidity-text
         - genvalidity-time
         - genvalidity-unordered-containers
-        - genvalidity-uuid
+        - genvalidity-uuid < 0 # GHC 8.4 via validity-uuid and uuid
         - genvalidity-vector
         - validity
         - validity-aeson
@@ -3206,7 +3206,7 @@ packages:
         - validity-text
         - validity-time
         - validity-unordered-containers
-        - validity-uuid
+        - validity-uuid < 0 # GHC 8.4 via uuid
         - validity-vector
 
     "Henry Laxen <nadine.and.henry@pobox.com> @HenryLaxen":