diff --git a/modules/backend b/modules/backend
index da1d9fa4..bd640df8 160000
--- a/modules/backend
+++ b/modules/backend
@@ -1 +1 @@
-Subproject commit da1d9fa4476a9b4527b8ca4d0308535e684d856d
+Subproject commit bd640df8d0fde1fa99e9b06540f466145c7f8bb1