diff --git a/build-constraints.yaml b/build-constraints.yaml
index a70feffc..eadff9e2 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3840,6 +3840,9 @@ expected-benchmark-failures:
     # https://github.com/mrkkrp/req-conduit/issues/4
     - req-conduit
 
+    # https://github.com/mrkkrp/path-io/issues/29
+    - path-io
+
 # end of expected-benchmark-failures