diff --git a/pom.xml b/pom.xml
index a414caa..8944e0a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -53,7 +53,7 @@
     <protobuf.version>2.5.0</protobuf.version>
     <hadoop.version>2.7.2</hadoop.version>
     <log4j.configuration>file://log4j.properties</log4j.configuration>
-    <netty.version>4.1.16.Final</netty.version>
+    <netty.version>4.1.42.Final</netty.version>
     <guava.version>20.0</guava.version>
     <grpc.version>1.7.0</grpc.version>
     <jackson.version>2.8.8</jackson.version>