diff --git a/build-constraints.yaml b/build-constraints.yaml
index abff70b5..03886f7f 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -5524,6 +5524,7 @@ expected-test-failures:
     - haskeline # https://github.com/commercialhaskell/stackage/issues/5439
     - http-client # https://github.com/commercialhaskell/stackage/issues/5470
     - http-directory # https://github.com/commercialhaskell/stackage/issues/5471
+    - req # https://github.com/commercialhaskell/stackage/issues/5472
 
     # Compilation failures
     - ListLike # No issue tracker, e-mail sent to maintainer