diff --git a/src/opter b/src/opter
index c3166ef..1d98a07 160000
--- a/src/opter
+++ b/src/opter
@@ -1 +1 @@
-Subproject commit c3166ef17b9882d017665476147ccaf0999e7717
+Subproject commit 1d98a0707c3e61e362d2d3d5413b475437b5de0e