diff --git a/build.gradle b/build.gradle
index a08fc80..e07c5e6 100644
--- a/build.gradle
+++ b/build.gradle
@@ -16,7 +16,7 @@ repositories {
 }
 
 dependencies {
-    compile 'io.netty:netty-all:4.1.53.Final'
+    compile 'io.netty:netty-all:4.1.89.Final'
     compile 'com.google.guava:guava:23.4-jre'
     compile 'org.slf4j:slf4j-api:1.7.30'
     compile group: 'com.fasterxml.jackson.core', name: 'jackson-databind', version: '2.11.1'