diff --git a/backend-core b/backend-core
index cfc9ea0..31b305a 160000
--- a/backend-core
+++ b/backend-core
@@ -1 +1 @@
-Subproject commit cfc9ea0672e0d1b566bc81b5c34126addd21ea7c
+Subproject commit 31b305a9c6699c8329e46be0166adbad7f15db1b