diff --git a/pom.xml b/pom.xml
index 894a6bf..5cf80a4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -22,7 +22,7 @@
     <dependency>
       <groupId>com.thoughtworks.xstream</groupId>
       <artifactId>xstream</artifactId>
-      <version>1.4.10</version>
+      <version>1.4.18</version>
       <scope>test</scope>
     </dependency>
     <dependency>