diff --git a/build-constraints.yaml b/build-constraints.yaml
index 0bc2e048..f12e1de8 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1467,6 +1467,9 @@ expected-test-failures:
     # https://github.com/prowdsponsor/mangopay/issues/30
     - mangopay
 
+    # https://github.com/MichaelXavier/Angel/issues/43
+    - angel
+
 # Haddocks which are expected to fail. Same concept as expected test failures.
 expected-haddock-failures:
     # https://github.com/acw/bytestring-progress/issues/4