diff --git a/build-constraints.yaml b/build-constraints.yaml
index 09759a41..37d055d8 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2221,7 +2221,8 @@ packages:
         - hw-bits
         - hw-conduit
         - hw-diagnostics
-        - hw-json
+        # https://github.com/haskell-works/hw-json/issues/4
+        # - hw-json
         - hw-parser
         - hw-prim
         - hw-rankselect