diff --git a/others/weixin-java-osgi/pom.xml b/others/weixin-java-osgi/pom.xml
index 67e4f42be..b8531da88 100644
--- a/others/weixin-java-osgi/pom.xml
+++ b/others/weixin-java-osgi/pom.xml
@@ -28,7 +28,7 @@
     <dependency>
       <groupId>com.thoughtworks.xstream</groupId>
       <artifactId>xstream</artifactId>
-      <version>1.4.19</version>
+      <version>1.4.21</version>
       <scope>provided</scope>
       <exclusions>
         <exclusion>