diff --git a/build.gradle b/build.gradle
index 07e702e7a7..aef3ed78c8 100644
--- a/build.gradle
+++ b/build.gradle
@@ -58,7 +58,7 @@ ext {
   assertJVersion = '3.6.1'
 
   // Libraries
-  nettyVersion = '4.1.29.Final'
+  nettyVersion = '4.1.31.Final'
   jacksonDatabindVersion = '2.5.1'
 
   // Testing