diff --git a/build-constraints.yaml b/build-constraints.yaml
index 62f2b31c..d6fe2455 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -830,9 +830,6 @@ packages:
         # https://github.com/fpco/stackage/issues/415
         - hackage-db < 1.12
 
-        # https://github.com/fpco/stackage/issues/424
-        - control-monad-free < 0.6
-
         # https://github.com/fpco/stackage/issues/442
         - blaze-builder < 0.4