diff --git a/demo-java/pom.xml b/demo-java/pom.xml
index 04f469b..0609e9e 100644
--- a/demo-java/pom.xml
+++ b/demo-java/pom.xml
@@ -20,7 +20,7 @@
         <dependency>
             <groupId>io.netty</groupId>
             <artifactId>netty-all</artifactId>
-            <version>4.1.36.Final</version>
+            <version>4.1.42.Final</version>
         </dependency>
 
         <dependency>