diff --git a/build.gradle b/build.gradle
index a5debb6..48c602d 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,6 +1,6 @@
 buildscript {
     ext {
-        kotlinVersion = '1.2.41'
+        kotlinVersion = '1.5.21'
         springBootVersion = '2.0.3.RELEASE'
     }
     repositories {