diff --git a/pom.xml b/pom.xml
index 3bb7f0b..250462b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -71,7 +71,7 @@
         <dependency>
             <groupId>io.netty</groupId>
             <artifactId>netty-handler</artifactId>
-            <version>4.1.121.Final</version>
+            <version>4.1.135.Final</version>
         </dependency>
    </dependencies>