diff --git a/pom.xml b/pom.xml
index b2f43ec..b4a4fa7 100644
--- a/pom.xml
+++ b/pom.xml
@@ -246,7 +246,7 @@
         <dependency>
             <groupId>com.thoughtworks.xstream</groupId>
             <artifactId>xstream</artifactId>
-            <version>1.4.9</version>
+            <version>1.4.18</version>
         </dependency>
 
         <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core -->