diff --git a/util/backbone b/util/backbone
index 4a53bfb..bc270b7 160000
--- a/util/backbone
+++ b/util/backbone
@@ -1 +1 @@
-Subproject commit 4a53bfb279f13ff3e21a8f57d3c34ef8c213f235
+Subproject commit bc270b7a0fdbbaec24dbd4af307bda242bed5c2b