diff --git a/build-constraints.yaml b/build-constraints.yaml
index f70b42e3..f7197416 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -240,8 +240,9 @@ packages:
     "Alberto G. Corona <agocorona@gmail.com>":
         - RefSerialize
         - TCache
-        - Workflow
-        - MFlow
+        # https://github.com/agocorona/Workflow/issues/5 GHC 7.10
+        # - Workflow
+        # - MFlow
 
     "Edward Kmett <ekmett@gmail.com>":
         - ad