diff --git a/build-constraints.yaml b/build-constraints.yaml
index b3810c9b..fe3e9a5a 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -5125,6 +5125,7 @@ packages:
         - lattices
         - lazy-csv
         - lazysmallcheck
+        - leb128-cereal
         - libBF
         - libyaml
         - lifted-async