diff --git a/Lib9c b/Lib9c
index 0a369cbcc..c6a17ceb8 160000
--- a/Lib9c
+++ b/Lib9c
@@ -1 +1 @@
-Subproject commit 0a369cbcc5d4d185723b101b336043a4fc2d1ff1
+Subproject commit c6a17ceb8856f4c7c6bdc7a7288be58479d9d006