diff --git a/nnvm b/nnvm
index 9d6b4e4f..85aaf570 160000
--- a/nnvm
+++ b/nnvm
@@ -1 +1 @@
-Subproject commit 9d6b4e4f9ecbb0af8bc935d4b3ca7de0c0eb4147
+Subproject commit 85aaf570c261986eebb076c7e160254c75f89ebb