diff --git a/build-constraints.yaml b/build-constraints.yaml
index b01dce77..7f15052f 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3839,6 +3839,7 @@ expected-test-failures:
     - ListLike # No issue tracker, e-mail sent to maintainer
     - amazonka-core # https://github.com/brendanhay/amazonka/issues/397
     - commutative # https://github.com/athanclark/commutative/issues/4
+    - conduit-throttle # https://github.com/mtesseract/conduit-throttle/issues/12
     - flat # https://github.com/Quid2/flat/issues/1
     - haddock
     - heap # https://github.com/pruvisto/heap/issues/4