diff --git a/build-constraints.yaml b/build-constraints.yaml
index b1e34053..db5e667d 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3856,6 +3856,7 @@ expected-test-failures:
     - bloodhound # ElasticSearch
     - cabal-install
     - consul-haskell
+    - cql-io # https://gitlab.com/twittner/cql-io/issues/12
     - credential-store # requieres dbus sockets
     - datadog # requires API keys in env vars https://github.com/fpco/stackage/pull/3308#issuecomment-369535040
     - dbcleaner # Requires running PostgreSQL server