diff --git a/lib/kotlin/settings.gradle.kts b/lib/kotlin/settings.gradle.kts
index 4090e86..638fd96 100644
--- a/lib/kotlin/settings.gradle.kts
+++ b/lib/kotlin/settings.gradle.kts
@@ -18,7 +18,7 @@
  */
 pluginManagement {
     plugins {
-        kotlin("jvm") version "1.9.20"
+        kotlin("jvm") version "1.9.21"
         id("com.ncorti.ktfmt.gradle") version "0.12.0"
     }
 }