diff --git a/build-constraints.yaml b/build-constraints.yaml
index d2d9281f..f4a6fadd 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -8517,6 +8517,7 @@ expected-test-failures:
     - protobuf # 0.2.1.4
     - record-wrangler # 0.1.1.0
     - secp256k1-haskell # #5948/closed
+    - serialise # 0.2.6.1 https://github.com/well-typed/cborg/issues/344
     - servant-static-th # 1.0.0.1 https://github.com/cdepillabout/servant-static-th/issues/21
     - snappy # Could not find module ‘Functions’
     - thread-supervisor # 0.2.0.0