diff --git a/.jazzy.yml b/.jazzy.yml
index 002937e3..f1ab6360 100644
--- a/.jazzy.yml
+++ b/.jazzy.yml
@@ -1,7 +1,7 @@
 # jazzy --config .jazzy.yml
 author: "Big Nerd Ranch"
 author_url: "https://bignerdranch.github.io"
-copyright: "© 2014-2016 [Big Nerd Ranch](//www.bignerdranch.com) under [MIT license](//github.com/bignerdranch/Deferred/blob/master/LICENSE.txt)."
+copyright: "© 2014-2018 [Big Nerd Ranch](//www.bignerdranch.com) under [MIT license](//github.com/bignerdranch/Deferred/blob/master/LICENSE.txt)."
 custom_categories:
   - name: Intuition
     children:
diff --git a/LICENSE.txt b/LICENSE.txt
index feec9b8d..b22b50e9 100644
--- a/LICENSE.txt
+++ b/LICENSE.txt
@@ -1,4 +1,4 @@
-Copyright (c) 2014-2016 John Gallagher, Zachary Waldowski, and contributors:
+Copyright (c) 2014-2018 John Gallagher, Zachary Waldowski, and contributors:
 
 https://github.com/bignerdranch/Deferred/contributors
 
diff --git a/Package.swift b/Package.swift
index a4191859..8be55c1e 100644
--- a/Package.swift
+++ b/Package.swift
@@ -5,7 +5,7 @@
 //  Deferred
 //
 //  Created by Zachary Waldowski on 12/7/15.
-//  Copyright © 2014-2016 Big Nerd Ranch. Licensed under MIT.
+//  Copyright © 2015-2018 Big Nerd Ranch. Licensed under MIT.
 //
 
 import PackageDescription
diff --git a/Sources/Atomics/include/Atomics.h b/Sources/Atomics/include/Atomics.h
index 83e868c0..92cf1b1d 100755
--- a/Sources/Atomics/include/Atomics.h
+++ b/Sources/Atomics/include/Atomics.h
@@ -3,7 +3,7 @@
 //  Deferred
 //
 //  Created by Zachary Waldowski on 12/7/15.
-//  Copyright © 2015-2017 Big Nerd Ranch. Licensed under MIT.
+//  Copyright © 2015-2018 Big Nerd Ranch. Licensed under MIT.
 //
 
 #ifndef __BNR_DEFERRED_ATOMIC_SHIMS__
diff --git a/Sources/Deferred.h b/Sources/Deferred.h
index 396ca48d..1f495971 100644
--- a/Sources/Deferred.h
+++ b/Sources/Deferred.h
@@ -3,7 +3,7 @@
 //  Deferred
 //
 //  Created by John Gallagher on 8/11/14.
-//  Copyright © 2014-2016 Big Nerd Ranch. Licensed under MIT.
+//  Copyright © 2014-2018 Big Nerd Ranch. Licensed under MIT.
 //
 
 //! Project version number for Deferred.
diff --git a/Sources/Deferred/Deferred.swift b/Sources/Deferred/Deferred.swift
index 70a468d6..57577ddf 100644
--- a/Sources/Deferred/Deferred.swift
+++ b/Sources/Deferred/Deferred.swift
@@ -3,7 +3,7 @@
 //  Deferred
 //
 //  Created by John Gallagher on 7/19/14.
-//  Copyright © 2014-2016 Big Nerd Ranch. Licensed under MIT.
+//  Copyright © 2014-2018 Big Nerd Ranch. Licensed under MIT.
 //
 
 import Dispatch
diff --git a/Sources/Deferred/Executor.swift b/Sources/Deferred/Executor.swift
index ac354451..15420dbc 100644
--- a/Sources/Deferred/Executor.swift
+++ b/Sources/Deferred/Executor.swift
@@ -3,7 +3,7 @@
 //  Deferred
 //
 //  Created by Zachary Waldowski on 3/29/16.
-//  Copyright © 2014-2016 Big Nerd Ranch. All rights reserved.
+//  Copyright © 2014-2018 Big Nerd Ranch. All rights reserved.
 //
 
 import Dispatch
diff --git a/Sources/Deferred/FutureCollections.swift b/Sources/Deferred/FutureCollections.swift
index d51dd397..249968a4 100644
--- a/Sources/Deferred/FutureCollections.swift
+++ b/Sources/Deferred/FutureCollections.swift
@@ -3,7 +3,7 @@
 //  Deferred
 //
 //  Created by Zachary Waldowski on 8/29/15.
-//  Copyright © 2014-2016 Big Nerd Ranch. Licensed under MIT.
+//  Copyright © 2014-2018 Big Nerd Ranch. Licensed under MIT.
 //
 
 import Dispatch
diff --git a/Sources/Deferred/FutureEveryMap.swift b/Sources/Deferred/FutureEveryMap.swift
index ea67dab1..62a0fe49 100644
--- a/Sources/Deferred/FutureEveryMap.swift
+++ b/Sources/Deferred/FutureEveryMap.swift
@@ -3,7 +3,7 @@
 //  Deferred
 //
 //  Created by Zachary Waldowski on 10/27/16.
-//  Copyright © 2016 Big Nerd Ranch. All rights reserved.
+//  Copyright © 2016-2018 Big Nerd Ranch. All rights reserved.
 //
 
 import Dispatch
diff --git a/Sources/Deferred/Locking.swift b/Sources/Deferred/Locking.swift
index f3f87fcc..e477ba1e 100644
--- a/Sources/Deferred/Locking.swift
+++ b/Sources/Deferred/Locking.swift
@@ -3,7 +3,7 @@
 //  Deferred
 //
 //  Created by John Gallagher on 7/17/14.
-//  Copyright © 2014-2016 Big Nerd Ranch. Licensed under MIT.
+//  Copyright © 2014-2018 Big Nerd Ranch. Licensed under MIT.
 //
 
 import Dispatch
diff --git a/Sources/Task/ExistentialTask.swift b/Sources/Task/ExistentialTask.swift
index a6c69986..3c13d339 100644
--- a/Sources/Task/ExistentialTask.swift
+++ b/Sources/Task/ExistentialTask.swift
@@ -3,7 +3,7 @@
 //  Deferred
 //
 //  Created by Zachary Waldowski on 3/28/16.
-//  Copyright © 2015-2016 Big Nerd Ranch. Licensed under MIT.
+//  Copyright © 2015-2018 Big Nerd Ranch. Licensed under MIT.
 //
 
 import Dispatch
diff --git a/Sources/Task/TaskProgress.swift b/Sources/Task/TaskProgress.swift
index 68e8339c..9fd8a51e 100644
--- a/Sources/Task/TaskProgress.swift
+++ b/Sources/Task/TaskProgress.swift
@@ -3,7 +3,7 @@
 //  Deferred
 //
 //  Created by Zachary Waldowski on 8/19/16.
-//  Copyright © 2016 Big Nerd Ranch. All rights reserved.
+//  Copyright © 2016-2018 Big Nerd Ranch. All rights reserved.
 //
 
 import Foundation