diff --git a/build-constraints.yaml b/build-constraints.yaml
index 3c0e0130..97426a6c 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3321,6 +3321,7 @@ packages:
         - hmpfr
         - collect-errors
         - mixed-types-num
+        - cdar-mBound
         # - aern2-mp
         # - aern2-real