diff --git a/libraries.gradle b/libraries.gradle
index d4adb45ec5..79b72c3792 100644
--- a/libraries.gradle
+++ b/libraries.gradle
@@ -16,7 +16,7 @@ ext {
     jlineVersion = '2.14.6'
     restAssuredVersion = '2.9.0'
     vaadinVersion = '8.13.0'
-    nettyVersion = '4.1.42.Final'
+    nettyVersion = '4.1.69.Final'
     httpAsyncClientVersion = '4.1.4'
     mysqlJDBCVersion = '8.0.17'
     c3p0Version = '0.9.5.4'