diff --git a/build.gradle b/build.gradle
index 0ecd8134..56d77631 100644
--- a/build.gradle
+++ b/build.gradle
@@ -14,7 +14,7 @@ import java.text.SimpleDateFormat
 buildscript {
     ext {
         version_gradle_tools = "3.6.3"
-        version_plugin_kotlin = "1.3.72"
+        version_plugin_kotlin = "1.4.21"
         enable_plugin_kotlin = false
 
         version_compileSdk = 28