diff --git a/build-constraints.yaml b/build-constraints.yaml
index 76d31f47..6bd84f9c 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3195,6 +3195,7 @@ packages:
 
     "Tim Humphries <tim+stackage@utf8.me> @thumphries":
         - transformers-either
+        - transformers-fix
 
     "Andre Van Der Merwe <stackage@andrevdm.com> @andrevdm":
         - bhoogle