diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 739627c8..81c21359 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -1,5 +1,5 @@
 [versions]
-kotlin = "2.3.20"
+kotlin = "2.3.21"
 ktlint = "14.2.0"
 shadow = "8.3.10"
 protocolLib = "5.1.0"