diff --git a/sentinel-cluster/pom.xml b/sentinel-cluster/pom.xml
index 0860db16..93381fae 100644
--- a/sentinel-cluster/pom.xml
+++ b/sentinel-cluster/pom.xml
@@ -13,7 +13,7 @@
     <description>The parent module of Sentinel cluster server</description>
 
     <properties>
-        <netty.version>4.1.31.Final</netty.version>
+        <netty.version>4.1.48.Final</netty.version>
     </properties>
 
     <modules>