diff --git a/build-constraints.yaml b/build-constraints.yaml
index 972a5c44..355ef492 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1352,6 +1352,7 @@ packages:
         - overloaded-records # Maintained by @trskop.
         - ratel
         - ratel-wai
+        - rattletrap
         - strive
         - wuss