diff --git a/quicktype-plugin/build.gradle b/quicktype-plugin/build.gradle
index 49f0fe20..5faa2423 100644
--- a/quicktype-plugin/build.gradle
+++ b/quicktype-plugin/build.gradle
@@ -1,5 +1,5 @@
 plugins {
-    id 'org.jetbrains.kotlin.jvm' version '1.6.20'
+    id 'org.jetbrains.kotlin.jvm' version '1.6.21'
 }
 
 apply plugin: "maven-publish"