diff --git a/build-constraints.yaml b/build-constraints.yaml
index 31a1d0be..4af8b082 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2596,14 +2596,14 @@ packages:
         - bins
         - conduino
         - configurator-export
-        - decidable
+        - decidable < 0 # needs functor-products
         - emd
         - functor-products < 0 # https://github.com/mstksg/functor-products/issues/4
         - hamilton < 0 # 0.1.0.3 compile fail https://github.com/mstksg/hamilton/issues/9
         - hmatrix-backprop
         - hmatrix-vector-sized
         - lens-typelevel
-        - list-witnesses
+        - list-witnesses < 0 # needs functor-products
         - nonempty-containers
         - one-liner-instances
         - servant-cli