diff --git a/build-constraints.yaml b/build-constraints.yaml
index 1f08fe22..9535f82e 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -7609,6 +7609,8 @@ expected-test-failures:
     - dhall
     - doctest-driver-gen
     - email-validate
+    - greskell
+    - greskell-core
     - headroom
     - hint
     - hledger-lib