diff --git a/core/pom.xml b/core/pom.xml
index a1e5d1aa6..b9be0071c 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -188,7 +188,7 @@
         <dependency>
             <groupId>com.thoughtworks.xstream</groupId>
             <artifactId>xstream</artifactId>
-            <version>1.4.16</version>
+            <version>1.4.18</version>
         </dependency>
 
         <dependency>