diff --git a/modules/backend b/modules/backend
index 31a6b326..15566f9a 160000
--- a/modules/backend
+++ b/modules/backend
@@ -1 +1 @@
-Subproject commit 31a6b326c6e821e22891a78af9bb5860db3cd9ff
+Subproject commit 15566f9a3344ab8f6adc8262948243af0e81fd22