diff --git a/build-constraints.yaml b/build-constraints.yaml
index efe7ce1a..fe6a864e 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -7337,7 +7337,12 @@ packages:
         # https://github.com/commercialhaskell/stackage/issues/6698
         - hedgehog < 1.2
 
+        #
         - hasql-pool < 0.8
+
+        # https://github.com/commercialhaskell/stackage/issues/6701
+        # https://github.com/haskell-works/avro/issues/188
+        - HasBigDecimal < 0.2
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of