diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 87a021517..30e9fc0be 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -20,7 +20,7 @@ micronaut-serde = "2.0.0-M5"
 micronaut-session = "4.0.0-M1"
 micronaut-validation = "4.0.0-M5"
 google-cloud-functions = '1.0.4'
-kotlin = "1.8.20"
+kotlin = "1.8.21"
 micronaut-logging = "1.0.0-M1"
 
 # Micronaut