diff --git a/contracts b/contracts
index 4698e4e..d647331 160000
--- a/contracts
+++ b/contracts
@@ -1 +1 @@
-Subproject commit 4698e4ef55fdc61aa3df8d8494f2cbbd306b26c9
+Subproject commit d647331a48dfbc6d398139831054d41fa52f79da