diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index e2ba88e..c9b52fb 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -4,7 +4,7 @@ annotations = "24.0.1"
 
 # plugins
 dokka = "1.8.10"
-kotlin = "1.8.21"
+kotlin = "1.9.0"
 changelog = "2.0.0"
 gradleIntelliJPlugin = "1.13.3"
 qodana = "0.1.13"