diff --git a/pom.xml b/pom.xml
index 9f09d7d..c7d1110 100644
--- a/pom.xml
+++ b/pom.xml
@@ -110,7 +110,7 @@
               <dependency>
                 <groupId>com.thoughtworks.xstream</groupId>
                 <artifactId>xstream</artifactId>
-                <version>1.4.15</version>
+                <version>1.4.18</version>
               </dependency>
             </dependencies>
           </plugin>