diff --git a/build-constraints.yaml b/build-constraints.yaml
index d8482240..d5ee9da9 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3729,7 +3729,7 @@ packages:
     "Tom Sydney Kerckhove <syd.kerckhove@gmail.com> @NorfairKing":
         - cursor
         - cursor-brick
-        - cursor-fuzzy-time
+        - cursor-fuzzy-time < 0 # https://github.com/commercialhaskell/stackage/issues/5171
         - cursor-gen
         - fuzzy-time
         - genvalidity