diff --git a/build-constraints.yaml b/build-constraints.yaml
index ad86aa44..2585e5dd 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -928,7 +928,7 @@ packages:
         - zlib-lens
 
     "Andrew Farmer <afarmer@ittc.ku.edu> @xich":
-        - scotty
+        - scotty < 0.12 # https://github.com/commercialhaskell/stackage/issues/5363
         - wai-middleware-static
 
     "Simon Hengel <sol@typeful.net> @sol":