diff --git a/09-queues-challenge/projects/starter/QueueChallenge.playground/Pages/4. Reverse Queue.xcplaygroundpage/Contents.swift b/09-queues-challenge/projects/starter/QueueChallenge.playground/Pages/4. Reverse Queue.xcplaygroundpage/Contents.swift
index 7b53f0d..cdfa445 100644
--- a/09-queues-challenge/projects/starter/QueueChallenge.playground/Pages/4. Reverse Queue.xcplaygroundpage/Contents.swift	
+++ b/09-queues-challenge/projects/starter/QueueChallenge.playground/Pages/4. Reverse Queue.xcplaygroundpage/Contents.swift	
@@ -1,4 +1,4 @@
-// Copyright (c) 2018 Razeware LLC
+// Copyright (c) 2025 Razeware LLC
 // For full license & permission details, see LICENSE.markdown.
 //: [Previous Challenge](@previous)
 /*:
diff --git a/09-queues-challenge/projects/starter/QueueChallenge.playground/Sources/Queue.swift b/09-queues-challenge/projects/starter/QueueChallenge.playground/Sources/Queue.swift
index 61a10c7..d2c5c22 100755
--- a/09-queues-challenge/projects/starter/QueueChallenge.playground/Sources/Queue.swift
+++ b/09-queues-challenge/projects/starter/QueueChallenge.playground/Sources/Queue.swift
@@ -1,4 +1,4 @@
-// Copyright (c) 2018 Razeware LLC
+// Copyright (c) 2025 Razeware LLC
 // For full license & permission details, see LICENSE.markdown.
 
 public protocol Queue {
diff --git a/09-queues-challenge/projects/starter/QueueChallenge.playground/Sources/QueueArray.swift b/09-queues-challenge/projects/starter/QueueChallenge.playground/Sources/QueueArray.swift
index 4891424..e418079 100644
--- a/09-queues-challenge/projects/starter/QueueChallenge.playground/Sources/QueueArray.swift
+++ b/09-queues-challenge/projects/starter/QueueChallenge.playground/Sources/QueueArray.swift
@@ -1,4 +1,4 @@
-// Copyright (c) 2018 Razeware LLC
+// Copyright (c) 2025 Razeware LLC
 // For full license & permission details, see LICENSE.markdown.
 
 // MARK: - Array Based Queue
diff --git a/09-queues-challenge/projects/starter/QueueChallenge.playground/Sources/QueueLinkedList.swift b/09-queues-challenge/projects/starter/QueueChallenge.playground/Sources/QueueLinkedList.swift
index f78e5f4..e109f99 100644
--- a/09-queues-challenge/projects/starter/QueueChallenge.playground/Sources/QueueLinkedList.swift
+++ b/09-queues-challenge/projects/starter/QueueChallenge.playground/Sources/QueueLinkedList.swift
@@ -1,4 +1,4 @@
-// Copyright (c) 2018 Razeware LLC
+// Copyright (c) 2025 Razeware LLC
 // For full license & permission details, see LICENSE.markdown.
 
 
diff --git a/09-queues-challenge/projects/starter/QueueChallenge.playground/Sources/QueueRingBuffer.swift b/09-queues-challenge/projects/starter/QueueChallenge.playground/Sources/QueueRingBuffer.swift
index 63897b5..661577b 100644
--- a/09-queues-challenge/projects/starter/QueueChallenge.playground/Sources/QueueRingBuffer.swift
+++ b/09-queues-challenge/projects/starter/QueueChallenge.playground/Sources/QueueRingBuffer.swift
@@ -1,4 +1,4 @@
-// Copyright (c) 2018 Razeware LLC
+// Copyright (c) 2025 Razeware LLC
 // For full license & permission details, see LICENSE.markdown.
 
 // MARK: - Ring Buffer Based Queue