diff --git a/cxgn/sgn b/cxgn/sgn
index 5947d96..9aa175a 160000
--- a/cxgn/sgn
+++ b/cxgn/sgn
@@ -1 +1 @@
-Subproject commit 5947d964c7d481af257c5f211164d7414676f4ab
+Subproject commit 9aa175ab8d5ac3d815f56c9961cc3f54531c173f