diff --git a/client/pom.xml b/client/pom.xml
old mode 100755
new mode 100644
index 1b6c2d6..adbb602
--- a/client/pom.xml
+++ b/client/pom.xml
@@ -73,7 +73,7 @@
         <dependency>
             <groupId>io.netty</groupId>
             <artifactId>netty-all</artifactId>
-            <version>4.1.34.Final</version>
+            <version>4.1.42.Final</version>
         </dependency>
         <dependency>
             <groupId>javax.json</groupId>