diff --git a/build-constraints.yaml b/build-constraints.yaml
index 131171ef..328113cf 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2348,6 +2348,9 @@ expected-test-failures:
     # https://github.com/fpco/stackage/issues/1070
     - parsers
 
+    # Requires a running PostgreSQL server
+    - wai-session-postgresql
+
 # end of expected-test-failures