diff --git a/build-constraints.yaml b/build-constraints.yaml
index 7be59c86..674258cb 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1094,8 +1094,7 @@ packages:
     "Fumiaki Kinoshita <fumiexcel@gmail.com> @fumieval":
         - control-bool
         - monad-skeleton
-        # https://github.com/fpco/stackage/issues/812
-        #- objective
+        - objective
         - witherable
         - xml-lens
 
@@ -1238,9 +1237,7 @@ packages:
         - hsass
 
     "Robert Massaioli robertmassaioli@gmail.com":
-        []
-        # https://github.com/fpco/stackage/issues/812
-        #- range
+        - range
 
     "Index Int <vlad.z.4096@gmail.com>":
         - transformers-lift