diff --git a/build-constraints.yaml b/build-constraints.yaml
index c51626d5..6021b652 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2461,6 +2461,7 @@ packages:
         - extra < 1.4.11
         - active < 0.2.0.11
         - socket < 0.6.2.0
+        - cassava-conduit < 0.3.3
 
         # https://github.com/fpco/stackage/issues/1734
         - haskell-src-exts < 1.18