diff --git a/build-constraints.yaml b/build-constraints.yaml
index bf76a94f..fdf9bf8e 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -8170,6 +8170,7 @@ expected-test-failures:
     - protobuf # 0.2.1.4
     - record-wrangler # 0.1.1.0
     - relapse # 1.0.0.0 #5948/closed
+    - sandwich # https://github.com/commercialhaskell/stackage/issues/6680
     - secp256k1-haskell # #5948/closed
     - servant-static-th # 1.0.0.0 Tasty issue: https://github.com/commercialhaskell/stackage/issues/6090
     - snappy # Could not find module ‘Functions’