diff --git a/intentional/build.gradle b/intentional/build.gradle
index 041ae672..b1f3eaa3 100644
--- a/intentional/build.gradle
+++ b/intentional/build.gradle
@@ -3,7 +3,7 @@ plugins {
     id 'war'
     id 'antlr'
     id 'org.jetbrains.kotlin.jvm' version '2.0.21'
-    id 'org.gretty' version '3.1.5'
+    id 'org.gretty' version '4.1.6'
     id 'com.github.johnrengelman.shadow' version '6.1.0'
 }