diff --git a/new-hire-kjar/pom.xml b/new-hire-kjar/pom.xml
index 4adc5d1..ded393c 100644
--- a/new-hire-kjar/pom.xml
+++ b/new-hire-kjar/pom.xml
@@ -12,7 +12,7 @@
     <dependency>
       <groupId>com.thoughtworks.xstream</groupId>
       <artifactId>xstream</artifactId>
-      <version>1.4.18</version>
+      <version>1.4.21</version>
       <scope>test</scope>
     </dependency>
     <dependency>