diff --git a/core b/core
index 8a269ab6..8a2bbf69 160000
--- a/core
+++ b/core
@@ -1 +1 @@
-Subproject commit 8a269ab652f3e08d658cc922aa7744ab14d1cb30
+Subproject commit 8a2bbf692aaa8a3136c19f8a00bbf70a8e59c25a
diff --git a/samples/pom.xml b/samples/pom.xml
index ab981eb5..b73ce4e6 100644
--- a/samples/pom.xml
+++ b/samples/pom.xml
@@ -11,7 +11,7 @@
 
 	<groupId>com.jd.blockchain</groupId>
 	<artifactId>jdchain-samples</artifactId>
-	<version>1.2.0.RELEASE</version>
+	<version>1.2.1.RELEASE</version>
 	<packaging>pom</packaging>
 
 	<properties>