diff --git a/pom.xml b/pom.xml
index 3ed8373..e2fc9b9 100644
--- a/pom.xml
+++ b/pom.xml
@@ -86,7 +86,7 @@
             <dependency>
                 <groupId>io.netty</groupId>
                 <artifactId>netty-all</artifactId>
-                <version>4.1.27.Final</version>
+                <version>4.1.42.Final</version>
             </dependency>
             <dependency>
                 <groupId>org.apache.zookeeper</groupId>