diff --git a/libplanet b/libplanet
index d9942f8..42fbee9 160000
--- a/libplanet
+++ b/libplanet
@@ -1 +1 @@
-Subproject commit d9942f812305668714eb953dd1f1b53d8a3ca532
+Subproject commit 42fbee9dc6e6cde218c38433906f0c4d6353aca9