diff --git a/pom.xml b/pom.xml
index 0779ea268d..f36e599895 100644
--- a/pom.xml
+++ b/pom.xml
@@ -270,7 +270,7 @@
             <dependency>
                 <groupId>io.netty</groupId>
                 <artifactId>netty-all</artifactId>
-                <version>4.2.7.Final</version>
+                <version>4.2.9.Final</version>
             </dependency>
 
             <!-- for streaming-->