diff --git a/sandbox/pom.xml b/sandbox/pom.xml
index 1d08534..561cd59 100644
--- a/sandbox/pom.xml
+++ b/sandbox/pom.xml
@@ -25,7 +25,7 @@
         <dependency>
             <groupId>io.netty</groupId>
             <artifactId>netty-all</artifactId>
-            <version>4.1.6.Final</version>
+            <version>4.1.42.Final</version>
         </dependency>
 
         <dependency>