diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 23bb37d..e375040 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -5,7 +5,7 @@ junit = "4.13.2"
 # plugins
 changelog = "2.5.0"
 intelliJPlatform = "2.13.1"
-kotlin = "2.3.20"
+kotlin = "2.3.21"
 kover = "0.9.8"
 qodana = "2025.3.2"