diff --git a/build-constraints.yaml b/build-constraints.yaml
index 01287040..f6aca82e 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4577,6 +4577,9 @@ packages:
         # https://github.com/commercialhaskell/stackage/issues/4511
         - wai-extra < 3.0.26
 
+        # https://github.com/commercialhaskell/stackage/issues/4512
+        - aeson < 1.4.3.0
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of