diff --git a/viperserver b/viperserver
index 2f7124f97..7b4d0d1c4 160000
--- a/viperserver
+++ b/viperserver
@@ -1 +1 @@
-Subproject commit 2f7124f970487c7faead97723269e373d49a2c6c
+Subproject commit 7b4d0d1c401b985537a4a3ae502f39a8fe5ac7fa