diff --git a/Kotlin/build.gradle.kts b/Kotlin/build.gradle.kts
index 595148f6..113cd27f 100644
--- a/Kotlin/build.gradle.kts
+++ b/Kotlin/build.gradle.kts
@@ -1,7 +1,7 @@
 import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 
 plugins {
-	kotlin("jvm") version "1.6.10"
+	kotlin("jvm") version "1.8.10"
 }
 
 group = "com.gildedrose"
@@ -13,7 +13,7 @@ repositories {
 
 dependencies {
 	implementation(kotlin("stdlib"))
-	testImplementation("org.junit.jupiter:junit-jupiter:5.8.2")
+	testImplementation("org.junit.jupiter:junit-jupiter:5.9.2")
 }
 
 tasks.test {
diff --git a/Kotlin/src/main/kotlin/com/gildedrose/GildedRose.kt b/Kotlin/src/main/kotlin/com/gildedrose/GildedRose.kt
index 077867b6..7ede7cee 100644
--- a/Kotlin/src/main/kotlin/com/gildedrose/GildedRose.kt
+++ b/Kotlin/src/main/kotlin/com/gildedrose/GildedRose.kt
@@ -1,6 +1,6 @@
 package com.gildedrose
 
-class GildedRose(var items: Array<Item>) {
+class GildedRose(var items: List<Item>) {
 
     fun updateQuality() {
         for (i in items.indices) {
diff --git a/Kotlin/src/test/kotlin/com/gildedrose/GildedRoseTest.kt b/Kotlin/src/test/kotlin/com/gildedrose/GildedRoseTest.kt
index 797ac815..c5216d8a 100644
--- a/Kotlin/src/test/kotlin/com/gildedrose/GildedRoseTest.kt
+++ b/Kotlin/src/test/kotlin/com/gildedrose/GildedRoseTest.kt
@@ -7,7 +7,7 @@ internal class GildedRoseTest {
 
     @Test
     fun foo() {
-        val items = arrayOf<Item>(Item("foo", 0, 0))
+        val items = listOf(Item("foo", 0, 0))
         val app = GildedRose(items)
         app.updateQuality()
         assertEquals("fixme", app.items[0].name)
diff --git a/Kotlin/src/test/kotlin/com/gildedrose/TexttestFixture.kt b/Kotlin/src/test/kotlin/com/gildedrose/TexttestFixture.kt
index 7eeac81e..a87a0d13 100644
--- a/Kotlin/src/test/kotlin/com/gildedrose/TexttestFixture.kt
+++ b/Kotlin/src/test/kotlin/com/gildedrose/TexttestFixture.kt
@@ -4,7 +4,7 @@ fun main(args: Array<String>) {
 
     println("OMGHAI!")
 
-    val items = arrayOf(Item("+5 Dexterity Vest", 10, 20), //
+    val items = listOf(Item("+5 Dexterity Vest", 10, 20), //
             Item("Aged Brie", 2, 0), //
             Item("Elixir of the Mongoose", 5, 7), //
             Item("Sulfuras, Hand of Ragnaros", 0, 80), //
@@ -31,6 +31,4 @@ fun main(args: Array<String>) {
         println()
         app.updateQuality()
     }
-
-
 }