diff --git a/build-constraints.yaml b/build-constraints.yaml
index a89a5168..84bdd700 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2446,6 +2446,9 @@ packages:
         - haskell-src-exts-simple < 1.18.0.0
         - pointful < 1.0.9
 
+        # https://github.com/fpco/stackage/issues/1764
+        - aeson < 1.0
+
 # end of packages