diff --git a/build-constraints.yaml b/build-constraints.yaml
index 67065a9f2..c962af337 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -8758,6 +8758,9 @@ skipped-tests:
     - unagi-chan
     - zeromq4-patterns
 
+    # missing deps
+    - generic-arbitrary # needs build-tool tasty-discover (not sure if only for bootstrap?)
+
     # Wontfix. The maintainer doesn't want to keep test dependencies
     # up to date or be notified about it, or doesn't want stackage to
     # run the tests.