diff --git a/build-constraints.yaml b/build-constraints.yaml
index c358249e..d7cc2739 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2828,6 +2828,9 @@ expected-test-failures:
 
     # https://github.com/fpco/stackage/issues/1459
     - twitter-conduit
+
+    # https://github.com/l29ah/monad-peel/issues/1
+    - monad-peel
 # end of expected-test-failures
 
 # Benchmarks which are known not to build. Note that, currently we do not run