diff --git a/libplanet b/libplanet
index 4aadf2c..bbe7ba9 160000
--- a/libplanet
+++ b/libplanet
@@ -1 +1 @@
-Subproject commit 4aadf2c9919f93a283ec0f9883089a3dfd56f36c
+Subproject commit bbe7ba922c35c2106c700ef0771d4d0e3ee04a4a