diff --git a/build.gradle b/build.gradle
index c3b5f7527..e512b7247 100644
--- a/build.gradle
+++ b/build.gradle
@@ -13,7 +13,7 @@ buildscript {
         guavaVersion = '32.1.3-jre'
         h2Version = '1.4.200'
         jsonPathVersion = '2.8.0'
-        kotlinVersion = '1.9.20'
+        kotlinVersion = '1.9.21'
         ktlintVersion = '0.43.2'
         passayVersion = '1.6.4'
         postgresqlJdbcVersion = '42.7.0'