diff --git a/build-constraints.yaml b/build-constraints.yaml
index ba72ac4b..e533b97d 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3857,6 +3857,9 @@ expected-test-failures:
     # https://github.com/romanb/wai-route/issues/5
     - wai-route
 
+    # https://github.com/brendanhay/amazonka/issues/397
+    - amazonka-core
+
 # end of expected-test-failures
 
 # Benchmarks which are known not to build. Note that, currently we do not run