diff --git a/libraries/chainbase b/libraries/chainbase
index 7615ddab28..91a7398e60 160000
--- a/libraries/chainbase
+++ b/libraries/chainbase
@@ -1 +1 @@
-Subproject commit 7615ddab287e06fd31f800e66fe39b3a19320ec8
+Subproject commit 91a7398e60522ab7cc6433c0c56aa8daf297deac