diff --git a/plexus-restlet-bridge/pom.xml b/plexus-restlet-bridge/pom.xml
index ebae89ab0..5574ca1cc 100644
--- a/plexus-restlet-bridge/pom.xml
+++ b/plexus-restlet-bridge/pom.xml
@@ -138,7 +138,7 @@
     <dependency>
       <groupId>com.thoughtworks.xstream</groupId>
       <artifactId>xstream</artifactId>
-      <version>1.3.1</version>
+      <version>1.4.19</version>
       <type>jar</type>
       <scope>compile</scope>
     </dependency>