diff --git a/build-constraints.yaml b/build-constraints.yaml
index 677db601..62065bd6 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3063,6 +3063,7 @@ packages:
         - ChasingBottoms
         - data-interval
         - vector-rotcev
+        - mod
 
     "Ashley Yakeley <ashley@semantic.org> @AshleyYakeley":
         - countable