diff --git a/upstream b/upstream
index d5913bf..4ffde48 160000
--- a/upstream
+++ b/upstream
@@ -1 +1 @@
-Subproject commit d5913bf86e004cb5040dbc0a8c1059ff9a91565a
+Subproject commit 4ffde48e2f4d5e745b757ba75f650ed6da4d6623