diff --git a/upstream b/upstream
index 5b77107..a52df53 160000
--- a/upstream
+++ b/upstream
@@ -1 +1 @@
-Subproject commit 5b77107161c504376b962107913bf74b575703e7
+Subproject commit a52df533c4694b5ed0a04140af60fd26146df911