diff --git a/build-constraints.yaml b/build-constraints.yaml
index 4f06cc38..717fefa0 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3044,6 +3044,7 @@ packages:
         - bitvec
         - poly
         - extended-reals
+        - ChasingBottoms
 
     "Ashley Yakeley <ashley@semantic.org> @AshleyYakeley":
         - countable