diff --git a/arch b/arch
index 7cf7436760..451478b936 160000
--- a/arch
+++ b/arch
@@ -1 +1 @@
-Subproject commit 7cf7436760f09d9ee5f76e049d07ced4f940884f
+Subproject commit 451478b9366f065d65e08489fa554668c65c2d47