diff --git a/gsn-core/pom.xml b/gsn-core/pom.xml
index e69ea9ff7..a34e6dab8 100644
--- a/gsn-core/pom.xml
+++ b/gsn-core/pom.xml
@@ -186,7 +186,7 @@
 		<dependency>
 			<groupId>com.thoughtworks.xstream</groupId>
 			<artifactId>xstream</artifactId>
-			<version>1.4.5</version>
+			<version>1.4.6</version>
 		</dependency>
 		<dependency>
 			<groupId>org.antlr</groupId>