diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 4d6a1b9..2b61070 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -1,5 +1,5 @@
 [versions]
-kotlin = "2.3.10"
+kotlin = "2.3.21"
 th2-plugin = "0.3.14"
 
 [libraries]