diff --git a/lib/socket/pom.xml b/lib/socket/pom.xml
index 1a5367f..376bd05 100644
--- a/lib/socket/pom.xml
+++ b/lib/socket/pom.xml
@@ -17,7 +17,7 @@
     <description>Demo project for Spring Boot</description>
 
     <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>
         <junit.version>4.12</junit.version>