diff --git a/build-constraints.yaml b/build-constraints.yaml
index 49ca872d..0219cad9 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1044,7 +1044,7 @@ packages:
         - lca
         - lens
         - lens-action
-        - lens-aeson
+        - lens-aeson < 1.2 # https://github.com/commercialhaskell/stackage/issues/6485
         - lens-properties
         - linear
         - linear-accelerate