diff --git a/build.gradle b/build.gradle
index 0a6105841..2e5adbde9 100644
--- a/build.gradle
+++ b/build.gradle
@@ -2,7 +2,7 @@ import java.nio.file.Files
 import java.nio.file.Paths
 
 plugins {
-    id "org.jetbrains.kotlin.jvm" version "2.0.20" apply false
+    id "org.jetbrains.kotlin.jvm" version "2.0.21" apply false
 }
 ext.distBinDir = file('ganttproject-builder/dist-bin')
 ext.pluginsDir = file("ganttproject-builder/dist-bin/plugins/base")