diff --git a/build-constraints.yaml b/build-constraints.yaml
index 52ebf633..62083d57 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4539,6 +4539,7 @@ expected-test-failures:
     - HTTP # e.g. "ERROR: Network.Socket.connect: <socket: 6>: unsupported operation (Cannot assign requested address)", I'm not sure if this is a build server issue...
     - dbus
     - genvalidity-hspec # https://github.com/NorfairKing/validity/issues/55
+    - genvalidity-hspec-hahsable # https://github.com/NorfairKing/validity/issues/55
     - ghcid # Weird conflicts with sandboxingistributed/distributed-process-supervisor/issues/1
     - pg-transact # https://github.com/jfischoff/pg-transact/issues/2
     - postgresql-simple-queue # same issue as before, see also https://github.com/fpco/stackage/issues/2592 as that will fix both