diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 9a048d0..90e95ac 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -7,7 +7,7 @@ serialization = "1.10.0"
 # plugins
 changelog = "2.5.0"
 intelliJPlatform = "2.16.0"
-kotlin = "2.3.20"
+kotlin = "2.3.21"
 kover = "0.9.8"
 qodana = "2025.3.2"