diff --git a/build-constraints.yaml b/build-constraints.yaml
index 8fb8a7a1..135dbda4 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -8412,6 +8412,7 @@ expected-test-failures:
     - hjsmin # Test-runner expects a cabal-style 'dist-newstyle' directory
     - hnix # #5469/closed
     - hocilib # oracle
+    - http-api-data-qq # Access to httpbin.org is unreliable (at the moment 504 Gateway Time-out).
     - http-client # httpbin issues, https://github.com/snoyberg/http-client/issues/439
     - http-directory # httpbin issues, https://github.com/juhp/http-directory/issues/1
     - http2 # executable not found https://github.com/kazu-yamamoto/http2/issues/22