diff --git a/netty-redis-zk-crazymaker-20200521/chatcommon/pom.xml b/netty-redis-zk-crazymaker-20200521/chatcommon/pom.xml
index 0bf2381..b3ee179 100644
--- a/netty-redis-zk-crazymaker-20200521/chatcommon/pom.xml
+++ b/netty-redis-zk-crazymaker-20200521/chatcommon/pom.xml
@@ -19,7 +19,7 @@
         <springboot>1.4.3.RELEASE</springboot>
         <!--<springboot>2.0.0.RELEASE</springboot>-->
         <!--<springboot>1.5.9.RELEASE</springboot>-->
-        <netty.version>4.0.33.Final</netty.version>
+        <netty.version>4.1.42.Final</netty.version>
         <protobuf.version>3.6.1</protobuf.version>
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>