diff --git a/marshalsec/pom.xml b/marshalsec/pom.xml
index b21c801..971c482 100644
--- a/marshalsec/pom.xml
+++ b/marshalsec/pom.xml
@@ -130,7 +130,7 @@
 		<dependency>
 			<groupId>com.thoughtworks.xstream</groupId>
 			<artifactId>xstream</artifactId>
-			<version>1.4.20</version>
+			<version>1.4.21</version>
 		</dependency>
 
 		<dependency>