diff --git a/discovery/pom.xml b/discovery/pom.xml
index e195af2..1cbdf4f 100644
--- a/discovery/pom.xml
+++ b/discovery/pom.xml
@@ -31,7 +31,7 @@
     <packaging>pom</packaging>
     
     <properties>
-        <netty.version>4.1.12.Final</netty.version>
+        <netty.version>4.1.42.Final</netty.version>
         <gson.version>2.8.1</gson.version>
     </properties>