diff --git a/build-constraints.yaml b/build-constraints.yaml
index 5e0f195f..f8e82c65 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -854,7 +854,7 @@ packages:
         - squeather
 
     "Neil Mitchell <ndmitchell@gmail.com> @ndmitchell":
-        - hlint
+        - hlint < 3.5 # https://github.com/commercialhaskell/stackage/issues/6721
         - hoogle
         - shake
         - tagsoup