diff --git a/build-constraints.yaml b/build-constraints.yaml
index e4558d2c..8fbadac8 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1746,6 +1746,8 @@ packages:
         - speedy-slice
         - hasty-hamiltonian
         - declarative
+        - sampling
+        - flat-mcmc
 
     "Facundo Domínguez <facundo.dominguez@tweag.io> @facundominguez":
         - distributed-process