diff --git a/build-constraints.yaml b/build-constraints.yaml
index b3804a14..584e5d16 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2499,6 +2499,7 @@ packages:
         # - scrape-changes # BLOCKED wreq
 
     "Daniel Mendler <mail@daniel-mendler.de> @minad":
+        - quickcheck-special
         - writer-cps-mtl
         - writer-cps-transformers