diff --git a/netty-redis-zk-crazymaker-20200521/NettyDemos/pom.xml b/netty-redis-zk-crazymaker-20200521/NettyDemos/pom.xml
index 99fff29..f1d3c1b 100644
--- a/netty-redis-zk-crazymaker-20200521/NettyDemos/pom.xml
+++ b/netty-redis-zk-crazymaker-20200521/NettyDemos/pom.xml
@@ -16,7 +16,7 @@
         <java.version>1.8</java.version>
         <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>