diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 4c4ee404..7439b214 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -8,7 +8,7 @@ micronaut-serde = "2.0.0"
 micronaut-validation = "4.0.0"
 
 groovy = "4.0.13"
-kotlin = '1.8.22'
+kotlin = '1.9.0'
 spock = "2.3-groovy-4.0"
 
 managed-zalando-problem="0.27.1"