diff --git a/build-constraints.yaml b/build-constraints.yaml
index b30754a8..77cf6234 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3494,6 +3494,7 @@ packages:
 
         # https://github.com/fpco/stackage/issues/2978
         - conduit-extra < 1.2.0
+        - cassava-conduit < 0.4.0.1
 
         # https://github.com/fpco/stackage/issues/2995
         - tasty < 0.12