diff --git a/jack b/jack
index 07f1ecf..15a179d 160000
--- a/jack
+++ b/jack
@@ -1 +1 @@
-Subproject commit 07f1ecf1ce119d861ec631cb4a6a81a1ab1e5657
+Subproject commit 15a179df5fc1a388c0719b4305343bd0b8d45cf8