diff --git a/broker/pom.xml b/broker/pom.xml
old mode 100755
new mode 100644
index 6f3dda57..03c38f70
--- a/broker/pom.xml
+++ b/broker/pom.xml
@@ -161,7 +161,7 @@
         <dependency>
             <groupId>org.eclipse.paho</groupId>
             <artifactId>org.eclipse.paho.client.mqttv3</artifactId>
-            <version>1.0.2</version>
+            <version>1.2.1</version>
         </dependency>
 
         <dependency>