diff --git a/pom.xml b/pom.xml
old mode 100755
new mode 100644
index fc401cf..d75d162
--- a/pom.xml
+++ b/pom.xml
@@ -311,7 +311,7 @@
         <dependency>
             <groupId>com.thoughtworks.xstream</groupId>
             <artifactId>xstream</artifactId>
-            <version>1.4.9</version>
+            <version>1.4.19</version>
         </dependency>
 
         <dependency>