diff --git a/spring-boot-2-nettyserver/pom.xml b/spring-boot-2-nettyserver/pom.xml
index 44abc13..6cf739c 100644
--- a/spring-boot-2-nettyserver/pom.xml
+++ b/spring-boot-2-nettyserver/pom.xml
@@ -25,7 +25,7 @@
 		<dependency>
 			<groupId>io.netty</groupId>
 			<artifactId>netty-all</artifactId>
-			<version>4.1.36.Final</version>
+			<version>4.1.42.Final</version>
 		</dependency>
 		<dependency>
 	        <groupId>org.springframework.boot</groupId>