diff --git a/BusOnAirServer/pom.xml b/BusOnAirServer/pom.xml
old mode 100755
new mode 100644
index ed333c4..bee4d16
--- a/BusOnAirServer/pom.xml
+++ b/BusOnAirServer/pom.xml
@@ -76,7 +76,7 @@
         <dependency>
             <groupId>com.thoughtworks.xstream</groupId>
             <artifactId>xstream</artifactId>
-            <version>1.3.1</version>
+            <version>1.4.16</version>
         </dependency>
 
         <dependency>