diff --git a/backend b/backend
index c3b3094..b31835a 160000
--- a/backend
+++ b/backend
@@ -1 +1 @@
-Subproject commit c3b309413e8db01be6cbbaf50a0157c04fabf151
+Subproject commit b31835a74d6169e0395a5e5d87f17b68b487e79d