diff --git a/upstream b/upstream
index 88678c0..9e21f20 160000
--- a/upstream
+++ b/upstream
@@ -1 +1 @@
-Subproject commit 88678c00c46c16e026aaa966cbc923b3d9e4757c
+Subproject commit 9e21f20bc112b3573460330d461216e7de7a8b5d