diff --git a/util/backbone b/util/backbone
index d4e233a..11c998a 160000
--- a/util/backbone
+++ b/util/backbone
@@ -1 +1 @@
-Subproject commit d4e233ae72412f4dfef9b7c39ae7a1b6667fb446
+Subproject commit 11c998aca2aa1b787286b336e579e5a4e31f471a