diff --git a/pom.xml b/pom.xml
index bdde241..4b49417 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1077,7 +1077,7 @@
             <dependency>
                 <groupId>com.thoughtworks.xstream</groupId>
                 <artifactId>xstream</artifactId>
-                <version>1.4.11.1</version>
+                <version>1.4.18</version>
             </dependency>
 
             <dependency>