diff --git a/build-constraints.yaml b/build-constraints.yaml
index 72759dcb..6696e952 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2513,6 +2513,8 @@ packages:
 
     "Ashley Yakeley <ashley@semantic.org> @AshleyYakeley":
         - countable
+        - witness
+        - open-witness
 
     "Victor Denisov <denisovenator@gmail.com> @VictorDenisov":
         - mongoDB