diff --git a/UPSTREAM_REF b/UPSTREAM_REF
index c67fed8..3634b00 100644
--- a/UPSTREAM_REF
+++ b/UPSTREAM_REF
@@ -1 +1 @@
-10fed9409db4d65a101bdcbadaf86c8f2180a901
+ec581b5e5f156edb862d01f4bd07d9ba51903ed6