diff --git a/build-constraints.yaml b/build-constraints.yaml
index d55eebc7..4fae094a 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2529,6 +2529,7 @@ packages:
         - sampling
         - flat-mcmc
         - urbit-hob
+        - hnock
 
     "Facundo Domínguez <facundo.dominguez@tweag.io> @facundominguez":
         - distributed-process < 0 # GHC 8.4 via network-transport-tcp