diff --git a/pom.xml b/pom.xml
index 4b7eb8e..b746118 100644
--- a/pom.xml
+++ b/pom.xml
@@ -278,7 +278,7 @@
       <dependency>
         <groupId>com.thoughtworks.xstream</groupId>
         <artifactId>xstream</artifactId>
-        <version>1.4.9</version>
+        <version>1.4.15</version>
       </dependency>
       <dependency>
         <groupId>xpp3</groupId>