diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index bdfefc6104..752210fe05 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -53,7 +53,7 @@ kgx = "0.1.6"
 kotest = "5.1.0"
 # Keep this in sync with what is hard-coded in build-logic/settings.gradle.kts as that is upstream
 # of loading the library versions from this file but should be the same.
-kotlin = "1.9.10"
+kotlin = "1.9.20"
 
 kotlinx-binary-compatibility = "0.13.2"
 kotlinx-coroutines = "1.7.3"
diff --git a/samples/tutorial/build.gradle b/samples/tutorial/build.gradle
index 694b326fe4..73473a6a82 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 = '1.9.20'
     workflow_version = "1.12.1-beta03"
 
     deps = [