diff --git a/build-constraints.yaml b/build-constraints.yaml
index 452ddf39..436e9c0d 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4867,9 +4867,6 @@ packages:
       # https://github.com/commercialhaskell/stackage/issues/5393
       - aeson < 1.5.0.0
 
-      # https://github.com/commercialhaskell/stackage/issues/5421
-      - hosc < 0.18
-
       # https://github.com/commercialhaskell/stackage/issues/5423
       - optparse-generic < 1.4.0