diff --git a/contracts b/contracts
index ca46c341..518a1d42 160000
--- a/contracts
+++ b/contracts
@@ -1 +1 @@
-Subproject commit ca46c341b263adfd70071288d669f7479983f326
+Subproject commit 518a1d424f09a11dc1b60a16026bfe8ffe07ca78