diff --git a/Lib9c b/Lib9c
index b3fa8c392..c42bbc372 160000
--- a/Lib9c
+++ b/Lib9c
@@ -1 +1 @@
-Subproject commit b3fa8c39262438e3bb8aa8044d4b060824cfcb4b
+Subproject commit c42bbc37201f4dca3eb2f89d82b14b4d01a4f1db