diff --git a/COPYING b/COPYING
index f70e1e29..6ac39b3a 100644
--- a/COPYING
+++ b/COPYING
@@ -1,4 +1,4 @@
-Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+Copyright (c) 2001-2014
 Contributors to the Freedoom project.  All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
diff --git a/Makefile b/Makefile
index 5970ee9e..4e254829 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,4 @@
-# Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
-#               2010, 2011, 2013, 2014
+# Copyright (c) 2001-2014
 # Contributors to the Freedoom project.  All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
diff --git a/buildcfg.txt b/buildcfg.txt
index 37e62d09..5f594ea0 100644
--- a/buildcfg.txt
+++ b/buildcfg.txt
@@ -7,7 +7,7 @@
 ; -DULTDOOM to build for ultimate doom
 ; -DSHAREWARE to build for shareware doom
 ;
-; Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
+; Copyright (c) 2001-2014
 ; Contributors to the Freedoom project.  All rights reserved.
 ;
 ; Redistribution and use in source and binary forms, with or without
diff --git a/scripts/makepkgs b/scripts/makepkgs
index d54c02f7..94b5cdb4 100755
--- a/scripts/makepkgs
+++ b/scripts/makepkgs
@@ -1,5 +1,5 @@
 #!/usr/bin/env python
-# Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2013, 2014
+# Copyright (c) 2001-2014
 # Contributors to the Freedoom project.  All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
diff --git a/scripts/sanity-check.py b/scripts/sanity-check.py
index b96894ac..a76c458d 100755
--- a/scripts/sanity-check.py
+++ b/scripts/sanity-check.py
@@ -3,7 +3,7 @@
 # perform sanity check on assignments lists; make sure everything in
 # the deutex tree is listed in the assignment lists
 #
-# Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
+# Copyright (c) 2001-2014
 # Contributors to the Freedoom project.  All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
diff --git a/scripts/simplecpp b/scripts/simplecpp
index 3aa1fab0..455cc71c 100755
--- a/scripts/simplecpp
+++ b/scripts/simplecpp
@@ -1,6 +1,6 @@
 #!/usr/bin/env python
 #
-# Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
+# Copyright (c) 2001-2014
 # Contributors to the Freedoom project.  All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without