diff --git a/build-constraints.yaml b/build-constraints.yaml
index 2b2a7e47..2c9e3514 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2943,7 +2943,7 @@ packages:
         - flexible-defaults
         - funcmp
         - hackage-db
-        - hledger-interest
+        - hledger-interest < 0 # https://github.com/commercialhaskell/stackage/issues/7887
         - hopenssl
         - hsdns
         - hsemail
@@ -3829,7 +3829,7 @@ packages:
         - ImpSpec
 
     "Hans-Peter Deifel <hpd@hpdeifel.de> @hpdeifel":
-        - hledger-iadd
+        - hledger-iadd < 0 # https://github.com/commercialhaskell/stackage/issues/7887
 
     "Boldizsár Németh <nboldi@elte.hu> @nboldi":
         - instance-control