diff --git a/build-constraints.yaml b/build-constraints.yaml
index 0221448c..34e66411 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1065,6 +1065,9 @@ expected-test-failures:
     # https://github.com/myfreeweb/gitson/issues/1
     - gitson
 
+    # https://github.com/jcristovao/enclosed-exceptions/issues/6
+    - enclosed-exceptions
+
 # Haddocks which are expected to fail. Same concept as expected test failures.
 expected-haddock-failures:
     # https://github.com/acw/bytestring-progress/issues/4