diff --git a/network/netty/netty-demo/pom.xml b/network/netty/netty-demo/pom.xml
index 50c15b6..bf76837 100644
--- a/network/netty/netty-demo/pom.xml
+++ b/network/netty/netty-demo/pom.xml
@@ -21,7 +21,7 @@
     </build>
 
     <properties>
-        <netty-all.version>4.1.6.Final</netty-all.version>
+        <netty-all.version>4.1.42.Final</netty-all.version>
         <lombok.version>1.16.12</lombok.version>
         <fastjson.version>1.2.29</fastjson.version>
     </properties>