diff --git a/quartz b/quartz
index 015b4f6..c9ac2a7 160000
--- a/quartz
+++ b/quartz
@@ -1 +1 @@
-Subproject commit 015b4f6a15da3b81f9e3ad004aa24636ab3882ed
+Subproject commit c9ac2a7507e42041fefe337f9328e6dc1281a9ff