diff --git a/build.gradle b/build.gradle
index 347bfb6697d..ec626a6f7be 100644
--- a/build.gradle
+++ b/build.gradle
@@ -47,7 +47,7 @@ ext {
 	junitVintageVersion  = "4.12.3"
 	kotlinVersion        = "1.2.71"
 	log4jVersion         = "2.11.2"
-	nettyVersion         = "4.1.33.Final"
+	nettyVersion         = "4.1.34.Final"
 	reactorVersion       = "Bismuth-SR16"
 	rxjavaVersion        = "1.3.8"
 	rxjavaAdapterVersion = "1.2.1"