diff --git a/pom.xml b/pom.xml
old mode 100755
new mode 100644
index 74d39e7c4..5f5a1b01d
--- a/pom.xml
+++ b/pom.xml
@@ -452,7 +452,7 @@
         <dependency>
             <groupId>io.netty</groupId>
             <artifactId>netty-all</artifactId>
-            <version>4.1.5.Final</version>
+            <version>4.1.42.Final</version>
         </dependency>
         <dependency>
             <groupId>com.google.protobuf</groupId>