diff --git a/upstream b/upstream
index 7c2d4df..4f97239 160000
--- a/upstream
+++ b/upstream
@@ -1 +1 @@
-Subproject commit 7c2d4df2d3b10646e80352ada9179a01529a8472
+Subproject commit 4f97239661ebf569fa701f211dd92ef1919bc922