diff --git a/lib/base-contracts b/lib/base-contracts
index ed36aac52..494586571 160000
--- a/lib/base-contracts
+++ b/lib/base-contracts
@@ -1 +1 @@
-Subproject commit ed36aac52a19bdad6dee09c59e7241fe3a194160
+Subproject commit 494586571e1a4d845ee6f381b65229d63c630986