diff --git a/viperserver b/viperserver
index 8ac486e32..7b13e90a3 160000
--- a/viperserver
+++ b/viperserver
@@ -1 +1 @@
-Subproject commit 8ac486e32dc2b45d82c345dfbf9602468b3b6682
+Subproject commit 7b13e90a37cc2e881f986fc2adbb0ff20c0f34e8