diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 72edd677..016446ed 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -1,5 +1,5 @@
 [versions]
-kotlin = "2.0.21"
+kotlin = "2.1.21"
 
 [plugins]
 dokka = { id = "org.jetbrains.dokka", version = "2.0.0" }