diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index fcdb2ffa..364af056 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -2,7 +2,7 @@
 
 # Commons
 kotlin20 = "2.0.21"
-kotlin21 = "2.1.21"
+kotlin21 = "2.4.20"
 kotlin22 = "2.2.20"
 kotlin23 = "2.3.20"
 kotlin24 = "2.4.20"