diff --git a/tank/pom.xml b/tank/pom.xml
index 852336f..9591abf 100644
--- a/tank/pom.xml
+++ b/tank/pom.xml
@@ -27,7 +27,7 @@
   	<dependency>
   		<groupId>io.netty</groupId>
   		<artifactId>netty-all</artifactId>
-  		<version>4.1.9.Final</version>
+  		<version>4.1.42.Final</version>
   	</dependency>
   </dependencies>
 </project>
\ No newline at end of file