diff --git a/server/pom.xml b/server/pom.xml
index c5b123aa..6bd8216c 100644
--- a/server/pom.xml
+++ b/server/pom.xml
@@ -160,7 +160,7 @@
         <dependency>
             <groupId>com.thoughtworks.xstream</groupId>
             <artifactId>xstream</artifactId>
-            <version>1.4.18</version>
+            <version>1.4.19</version>
         </dependency>
         <dependency>
             <groupId>com.googlecode.concurrentlinkedhashmap</groupId>