diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 86f3246..05dd0ae 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -1,6 +1,6 @@
 [versions]
 jvmTarget = "21"
-kotlin = "2.1.20"
+kotlin = "2.1.21"
 # should match kotlin https://github.com/google/ksp/releases
 ksp = "2.1.20-2.0.1"
 gradlePlugin = "8.10.0"