diff --git a/build-constraints.yaml b/build-constraints.yaml
index cbf4cd5b..4d1b2a19 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3915,9 +3915,6 @@ packages:
 
         # https://github.com/commercialhaskell/stackage/issues/4297
         - tomland < 1.0.0
-
-        # https://github.com/commercialhaskell/stackage/issues/4305
-        - leancheck < 0.9.0
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of