diff --git a/build-constraints.yaml b/build-constraints.yaml
index 86da7b66..5742f103 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3290,7 +3290,7 @@ packages:
         - directory-tree
 
     "Ian Grant Jeffries <ian@housejeffries.com> @seagreen":
-        - hjsonpointer
+        - hjsonpointer < 0  # via aeson 2, https://github.com/commercialhaskell/stackage/issues/6446
 
     "Drew Hess <src@drewhess.com> @dhess":
         - hpio