diff --git a/viperserver b/viperserver
index 9e234071f..1a1fcff2e 160000
--- a/viperserver
+++ b/viperserver
@@ -1 +1 @@
-Subproject commit 9e234071f7ec6f43f7ec9ac6bae3ecb2523c7c5c
+Subproject commit 1a1fcff2ecda88b3c6ea9875583f3abcd790dcaf