diff --git a/modules/backend b/modules/backend
index 7b8a34d1..9b405957 160000
--- a/modules/backend
+++ b/modules/backend
@@ -1 +1 @@
-Subproject commit 7b8a34d1aa8664483a934bc3f9de1a0c34a443fc
+Subproject commit 9b4059572818a5576d0ec1257d2bcf735971e0a2