diff --git a/trees/build.gradle.kts b/trees/build.gradle.kts
index a1cbaf8..c95a2e4 100644
--- a/trees/build.gradle.kts
+++ b/trees/build.gradle.kts
@@ -2,7 +2,7 @@ plugins {
     // Apply the org.jetbrains.kotlin.jvm Plugin to add support for Kotlin.
     id("org.jetbrains.kotlin.jvm") version "1.8.10"
     id("jacoco")
-    id("org.jetbrains.kotlin.plugin.noarg") version "1.8.20"
+    id("org.jetbrains.kotlin.plugin.noarg") version "1.8.21"
     id("org.jetbrains.kotlin.plugin.serialization") version "1.8.10"
 }