diff --git a/build-constraints.yaml b/build-constraints.yaml
index b17f4aa4..9e5f8e91 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -8911,6 +8911,7 @@ expected-test-failures:
     - memcache # 0.3.0.2 executable not found
     - mighty-metropolis # https://github.com/jtobin/mighty-metropolis/issues/6
     - mixpanel-client # https://github.com/domenkozar/mixpanel-client/issues/7
+    - mockcat # https://github.com/commercialhaskell/stackage/issues/7519
     - morpheus-graphql-app
     - mwc-random
     - nri-observability # https://github.com/commercialhaskell/stackage/issues/6179