diff --git a/pom.xml b/pom.xml
index f78bdf9..4752a99 100644
--- a/pom.xml
+++ b/pom.xml
@@ -298,7 +298,7 @@
       <dependency>
         <groupId>io.netty</groupId>
         <artifactId>netty-all</artifactId>
-        <version>4.1.17.Final</version>
+        <version>4.1.42.Final</version>
       </dependency>
       <dependency>
         <groupId>io.netty</groupId>
@@ -601,7 +601,7 @@
       <dependency>
         <groupId>io.netty</groupId>
         <artifactId>netty-all</artifactId>
-        <version>4.1.30.Final</version>
+        <version>4.1.42.Final</version>
       </dependency>
       <dependency>
         <groupId>io.netty</groupId>