diff --git a/build.gradle b/build.gradle
index cde378402..8e5371d69 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,6 +1,6 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 buildscript {
-    ext.kotlin_version = '1.4.10'
+    ext.kotlin_version = '1.4.21'
     repositories {
         jcenter()
         google()