diff --git a/build.gradle b/build.gradle
index f516116..11e396e 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,6 +1,6 @@
 buildscript {
     ext {
-        kotlinVersion = '1.6.20'
+        kotlinVersion = '1.6.21'
         springBootVersion = '2.7.0'
     }
     repositories {