diff --git a/pom.xml b/pom.xml
index 834db3d..db28027 100644
--- a/pom.xml
+++ b/pom.xml
@@ -137,7 +137,7 @@
                             <dependency>
                                 <groupId>com.thoughtworks.xstream</groupId>
                                 <artifactId>xstream</artifactId>
-                                <version>1.4.15</version>
+                                <version>1.4.18</version>
                             </dependency>
                         </dependencies>
                     </plugin>