diff --git a/build-constraints.yaml b/build-constraints.yaml
index 04ed26ea..effaf7b0 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -9179,6 +9179,7 @@ expected-test-failures:
     - rattle # needs fsatrace
     - redis-io
     - rel8
+    - req-conduit # Access to httpbin.org is unreliable (at the moment 504 Gateway Time-out).
     - rest-rewrite # posix_spawnp
     - rethinkdb
     - rethinkdb-client-driver
@@ -9253,6 +9254,7 @@ expected-test-failures:
     - hgeometry-combinatorial # 0.14
     - hruby # 0.5.0.0
     - hspec-golden-aeson # 0.9.0.0
+    - invertible # 0.2.0.8 executable not found
     - justified-containers # 0.3.0.0
     - jwt # 0.11.0
     - lattices # quicheck flakiness