diff --git a/util/backbone b/util/backbone
index e0eb670..bc270b7 160000
--- a/util/backbone
+++ b/util/backbone
@@ -1 +1 @@
-Subproject commit e0eb6706bf76ae7d4048c6f535fd72d4943c570b
+Subproject commit bc270b7a0fdbbaec24dbd4af307bda242bed5c2b