diff --git a/build-constraints.yaml b/build-constraints.yaml
index 8e777a0d..a027ce6d 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -8274,6 +8274,7 @@ expected-test-failures:
     - persistent-redis # redis - https://github.com/fpco/stackage/pull/1581
     - pinecone # Requires pinecone API key
     - pipes-mongodb
+    - pg-schema # needs a running server socket
     - postgresql-libpq-notify
     - postgresql-query # PostgreSQL
     - postgresql-simple # PostgreSQL