diff --git a/src/opter b/src/opter
index f43915c..c3166ef 160000
--- a/src/opter
+++ b/src/opter
@@ -1 +1 @@
-Subproject commit f43915c735509c55b858dc3a6ec5aeebf4fe4fc7
+Subproject commit c3166ef17b9882d017665476147ccaf0999e7717