diff --git a/jack b/jack
index ce588b3..4e53c8f 160000
--- a/jack
+++ b/jack
@@ -1 +1 @@
-Subproject commit ce588b3af5db56e4c0f22facc8f1bb25e0be7d5d
+Subproject commit 4e53c8f0a33e9ed87eac5ca6e578b7ee92a1fd3d