diff --git a/build-constraints.yaml b/build-constraints.yaml
index b6d3f966..951655d2 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2701,12 +2701,13 @@ packages:
         - hw-hedgehog
         - hw-hspec-hedgehog
         - hw-int
-        # - hw-json       # https://github.com/haskell-works/hw-json/issues/6
+        - hw-json
         - hw-parser
         - hw-prim
         - hw-rankselect
         - hw-rankselect-base
         - hw-succinct
+        - hw-xml
 
     "Ismail Mustafa <ismailmustafa@rocketmail.com> @ismailmustafa":
         - handwriting