diff --git a/tcslackbuildnotifier-core/pom.xml b/tcslackbuildnotifier-core/pom.xml
index 247b9780..10351369 100644
--- a/tcslackbuildnotifier-core/pom.xml
+++ b/tcslackbuildnotifier-core/pom.xml
@@ -197,7 +197,7 @@
 		<dependency>
 			<groupId>com.thoughtworks.xstream</groupId>
 			<artifactId>xstream</artifactId>
-			<version>1.3.1</version>
+			<version>1.4.18</version>
 			<scope>provided</scope>
 		</dependency>