diff --git a/build.gradle b/build.gradle
index d103b5a63b22..2354353ad578 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 = '1.2.20'
+    ext.kotlin_version = '1.2.21'
     repositories {
         google()
         jcenter()