diff --git a/quartz b/quartz
index 1d2dc16..1915a19 160000
--- a/quartz
+++ b/quartz
@@ -1 +1 @@
-Subproject commit 1d2dc167f4397e230092cc867889a86734343cfc
+Subproject commit 1915a198d96be134a91441ea52506c455cf8a696