diff --git a/build-constraints.yaml b/build-constraints.yaml
index 9ff3fef3..e3c962dd 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -617,9 +617,9 @@ packages:
         - aeson-utils
         - arrow-list
         - attoparsec-expr
-        # GHC 8 - bumper
+        - bumper
         - code-builder
-        # GHC 8 - fay-builder
+        - fay-builder
         - generic-aeson
         - generic-xmlpickler
         - hxt-pickle-utils
@@ -629,7 +629,7 @@ packages:
         - rest-client
         - rest-core
         - rest-gen
-        # GHC 8 - rest-happstack
+        - rest-happstack
         # GHC 8 - rest-snap
         - rest-stringmap
         - rest-types
@@ -2356,7 +2356,7 @@ packages:
 
     "Greg Hurrell <greg@hurrell.net>":
         - docvim
-    
+
     "Ashley Yakeley <ashley@semantic.org>":
         - countable