diff --git a/build-constraints.yaml b/build-constraints.yaml
index 5fd037b2..cb4ce4ad 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -5064,7 +5064,7 @@ packages:
     "Artem Pelenitsyn <artem.pelenitsyn@gmail.com> @ulysses4ever":
         - alex-meta
         - happy-meta
-        - BNFC-meta
+        - BNFC-meta < 0
         - vector-hashtables
 
     "Tomasz Maciosowski <t4ccer@gmail.com> @t4ccer":