diff --git a/build-constraints.yaml b/build-constraints.yaml
index 5f0d7bf3..ade038c0 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -719,6 +719,9 @@ packages:
         # https://github.com/fpco/stackage/issues/415
         - hackage-db < 1.12
 
+        # https://github.com/fpco/stackage/issues/424
+        - control-monad-free < 0.6
+
 # Package flags are applied to individual packages, and override the values of
 # global-flags
 package-flags: