diff --git a/maven-help-plugin/pom.xml b/maven-help-plugin/pom.xml
index c3a3e4c12e..63f1922dab 100644
--- a/maven-help-plugin/pom.xml
+++ b/maven-help-plugin/pom.xml
@@ -165,7 +165,7 @@ under the License.
     <dependency>
       <groupId>com.thoughtworks.xstream</groupId>
       <artifactId>xstream</artifactId>
-      <version>1.4.3</version>
+      <version>1.4.6</version>
     </dependency>
     <dependency>
       <groupId>org.apache.commons</groupId>