diff --git a/pom.xml b/pom.xml
index 0527a1b..24009b9 100644
--- a/pom.xml
+++ b/pom.xml
@@ -68,7 +68,7 @@
       <dependency>
         <groupId>io.netty</groupId>
         <artifactId>netty-all</artifactId>
-        <version>4.2.2.Final</version>
+        <version>4.2.9.Final</version>
         <scope>provided</scope>
       </dependency>
       <dependency>