diff --git a/README b/README
index f732b8b..3944f78 100644
--- a/README
+++ b/README
@@ -183,7 +183,7 @@ The changes in version 0.3 are:
  
 7. AUTHOR
 
-dtach is (C)Copyright 2004-2008 Ned T. Crigler, and is under the GNU General
+dtach is (C)Copyright 2004-2015 Ned T. Crigler, and is under the GNU General
 Public License.
 
 Comments and suggestions about dtach are welcome, and can be sent to
diff --git a/attach.c b/attach.c
index c01e86d..4eab449 100644
--- a/attach.c
+++ b/attach.c
@@ -1,6 +1,6 @@
 /*
     dtach - A simple program that emulates the detach feature of screen.
-    Copyright (C) 2004-2008 Ned T. Crigler
+    Copyright (C) 2004-2015 Ned T. Crigler
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
diff --git a/dtach.h b/dtach.h
index 88946a0..01ab1ad 100644
--- a/dtach.h
+++ b/dtach.h
@@ -1,6 +1,6 @@
 /*
     dtach - A simple program that emulates the detach feature of screen.
-    Copyright (C) 2001, 2004-2008 Ned T. Crigler
+    Copyright (C) 2001, 2004-2015 Ned T. Crigler
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
diff --git a/main.c b/main.c
index 0f9f459..550ad0a 100644
--- a/main.c
+++ b/main.c
@@ -1,6 +1,6 @@
 /*
     dtach - A simple program that emulates the detach feature of screen.
-    Copyright (C) 2004-2008 Ned T. Crigler
+    Copyright (C) 2004-2015 Ned T. Crigler
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -25,7 +25,7 @@
 */
 
 /* Make sure the binary has a copyright. */
-const char copyright[] = "dtach - version " PACKAGE_VERSION "(C)Copyright 2004-2008 Ned T. Crigler";
+const char copyright[] = "dtach - version " PACKAGE_VERSION "(C)Copyright 2004-2015 Ned T. Crigler";
 
 /* argv[0] from the program */
 char *progname;
diff --git a/master.c b/master.c
index 146110d..898bfdd 100644
--- a/master.c
+++ b/master.c
@@ -1,6 +1,6 @@
 /*
     dtach - A simple program that emulates the detach feature of screen.
-    Copyright (C) 2004-2008 Ned T. Crigler
+    Copyright (C) 2004-2015 Ned T. Crigler
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by