diff --git a/build.gradle b/build.gradle
index 8183c6bd7..a53733c91 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,7 +1,7 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-    ext.kotlin_version = '1.4.20'
+    ext.kotlin_version = '1.4.21'
     ext.is_proprietary = gradle.startParameter.taskNames.any { task -> task.contains("Proprietary") }
 
     repositories {