diff --git a/build.gradle b/build.gradle
index ec2d00c2b..65b0e6341 100644
--- a/build.gradle
+++ b/build.gradle
@@ -14,7 +14,7 @@ allprojects {
         junitVersion = '5.3.0-M1'
         slf4jVersion = '1.7.25'
         log4jVersion = '2.11.1'
-        nettyVersion = '4.1.30.Final'
+        nettyVersion = '4.1.31.Final'
         guavaVersion = '25.1-jre'
         checkerFrameworkVersion = '2.5.6'