diff --git a/build.gradle.kts b/build.gradle.kts
index 1ab4a4361..6cc265824 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,5 +1,5 @@
 plugins {
-  kotlin("jvm") version "1.9.20" apply false
+  kotlin("jvm") version "1.9.21" apply false
   kotlin("plugin.serialization") version "1.9.21" apply false
   id("io.bkbn.sourdough.library.jvm") version "0.12.1" apply false
   id("io.bkbn.sourdough.application.jvm") version "0.12.1" apply false