diff --git a/difftest b/difftest
index cf7776ed08..556dc4c7a3 160000
--- a/difftest
+++ b/difftest
@@ -1 +1 @@
-Subproject commit cf7776ed0835e364f6ef70d7f87dcb83a7342935
+Subproject commit 556dc4c7a3cfc4b843c8e76088cb73e49dc5d154