diff --git a/examples/dubbo/java-client/pom.xml b/examples/dubbo/java-client/pom.xml
index 414ca2bb963c8d8f17df35ad426b42506b944d22..f242e042676499904ab775837b583f4681c9c59f 100755
--- a/examples/dubbo/java-client/pom.xml
+++ b/examples/dubbo/java-client/pom.xml
@@ -97,7 +97,7 @@
 		<dependency>
 			<groupId>com.thoughtworks.xstream</groupId>
 			<artifactId>xstream</artifactId>
-			<version>1.4.1</version>
+			<version>1.4.7</version>
 		</dependency>
 		<dependency>
 			<groupId>org.apache.bsf</groupId>
@@ -107,7 +107,7 @@
 		<dependency>
 			<groupId>org.apache.zookeeper</groupId>
 			<artifactId>zookeeper</artifactId>
-			<version>3.3.3</version>
+			<version>3.4.9</version>
 		</dependency>
 		<dependency>
 			<groupId>com.github.sgroschupf</groupId>
diff --git a/examples/dubbo/java-server/pom.xml b/examples/dubbo/java-server/pom.xml
index 9481436c5412b66d78aa7ac90840684265cdcbfa..34bbb9722755510b9a7048f1463aa2d8df8d396c 100644
--- a/examples/dubbo/java-server/pom.xml
+++ b/examples/dubbo/java-server/pom.xml
@@ -97,7 +97,7 @@
         <dependency>
             <groupId>org.apache.zookeeper</groupId>
             <artifactId>zookeeper</artifactId>
-            <version>3.4.6</version>
+            <version>3.4.9</version>
         </dependency>
 
     </dependencies>
diff --git a/examples/jsonrpc/java-client/pom.xml b/examples/jsonrpc/java-client/pom.xml
index bc6d2b7ff022d5de0a473962adf5ed82628f20a3..b4db058b7a8f030d4dd8bc5ae5666453e2458764 100644
--- a/examples/jsonrpc/java-client/pom.xml
+++ b/examples/jsonrpc/java-client/pom.xml
@@ -97,7 +97,7 @@
 		<dependency>
 			<groupId>com.thoughtworks.xstream</groupId>
 			<artifactId>xstream</artifactId>
-			<version>1.4.1</version>
+			<version>1.4.7</version>
 		</dependency>
 		<dependency>
 			<groupId>org.apache.bsf</groupId>
@@ -107,7 +107,7 @@
 		<dependency>
 			<groupId>org.apache.zookeeper</groupId>
 			<artifactId>zookeeper</artifactId>
-			<version>3.3.3</version>
+			<version>3.4.9</version>
 		</dependency>
 		<dependency>
 			<groupId>com.github.sgroschupf</groupId>
diff --git a/examples/jsonrpc/java-server/pom.xml b/examples/jsonrpc/java-server/pom.xml
index 9481436c5412b66d78aa7ac90840684265cdcbfa..34bbb9722755510b9a7048f1463aa2d8df8d396c 100644
--- a/examples/jsonrpc/java-server/pom.xml
+++ b/examples/jsonrpc/java-server/pom.xml
@@ -97,7 +97,7 @@
         <dependency>
             <groupId>org.apache.zookeeper</groupId>
             <artifactId>zookeeper</artifactId>
-            <version>3.4.6</version>
+            <version>3.4.9</version>
         </dependency>
 
     </dependencies>