diff --git a/samples/tutorial/build.gradle b/samples/tutorial/build.gradle
index 694b326fe4..7a4efb1864 100644
--- a/samples/tutorial/build.gradle
+++ b/samples/tutorial/build.gradle
@@ -3,7 +3,7 @@ import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 buildscript {
   ext {
-    kotlin_version = '1.8.10'
+    kotlin_version = '1.9.10'
     workflow_version = "1.12.1-beta03"
 
     deps = [