diff --git a/4dm.h b/4dm.h
index 488b834..15e14db 160000
--- a/4dm.h
+++ b/4dm.h
@@ -1 +1 @@
-Subproject commit 488b834f89d89c44ffc6fa13fbaa6b593a474a53
+Subproject commit 15e14dbee2fbcbe900968cd1851bdf7b4eace4c7