diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 1c49280..f2cc106 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -1,7 +1,7 @@
 [versions]
 processor = "2026.2-SNAPSHOT"
 
-kotlin = "2.3.20"
+kotlin = "2.3.21"
 target-jdk = "11"
 build-jdk = "17"
 build-plugins = "2026.3"