diff --git a/sentinel-cluster/pom.xml b/sentinel-cluster/pom.xml
index c58ee305bc..d6661d1566 100644
--- a/sentinel-cluster/pom.xml
+++ b/sentinel-cluster/pom.xml
@@ -16,7 +16,7 @@
         <java.source.version>1.7</java.source.version>
         <java.target.version>1.7</java.target.version>
 
-        <netty.version>4.1.31.Final</netty.version>
+        <netty.version>4.1.46.Final</netty.version>
     </properties>
 
     <modules>