diff --git a/whiskers-ktor-no-db/build.gradle.kts b/whiskers-ktor-no-db/build.gradle.kts
index ba79ddd5..e4374f00 100644
--- a/whiskers-ktor-no-db/build.gradle.kts
+++ b/whiskers-ktor-no-db/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     application
-    kotlin("multiplatform") version "1.8.22"
+    kotlin("multiplatform") version "1.9.0"
     kotlin("plugin.serialization") version "1.8.22"
 }