diff --git a/4dm.h b/4dm.h
index 2f1e150..60e9ff0 160000
--- a/4dm.h
+++ b/4dm.h
@@ -1 +1 @@
-Subproject commit 2f1e1503576270d021ed0620a342d73220c79b82
+Subproject commit 60e9ff0083b0d13d31ef8d3758ea890ae3eed28f