diff --git a/CMakeLists.txt b/CMakeLists.txt
index c07f808ba..772bad9b3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -25,7 +25,7 @@ endif()
 project(libpng C)
 enable_testing()
 
-# Copyright (C) 2007-2010 Glenn Randers-Pehrson
+# Copyright (C) 2007-2011 Glenn Randers-Pehrson
 
 # This code is released under the libpng license.
 # For conditions of distribution and use, see the disclaimer
diff --git a/LICENSE b/LICENSE
index 9ba9d7d1f..4bc3a230e 100644
--- a/LICENSE
+++ b/LICENSE
@@ -10,8 +10,8 @@ this sentence.
 
 This code is released under the libpng license.
 
-libpng versions 1.2.6, August 15, 2004, through 1.5.1beta04, January 15, 2011, are
-Copyright (c) 2004, 2006-2010 Glenn Randers-Pehrson, and are
+libpng versions 1.2.6, August 15, 2004, through 1.5.1beta04, January 16, 2011, are
+Copyright (c) 2004, 2006-2011 Glenn Randers-Pehrson, and are
 distributed according to the same disclaimer and license as libpng-1.2.5
 with the following individual added to the list of Contributing Authors
 
@@ -108,4 +108,4 @@ certification mark of the Open Source Initiative.
 
 Glenn Randers-Pehrson
 glennrp at users.sourceforge.net
-January 15, 2011
+January 16, 2011
diff --git a/libpng-manual.txt b/libpng-manual.txt
index 27d3bef3d..055526cbe 100644
--- a/libpng-manual.txt
+++ b/libpng-manual.txt
@@ -3,7 +3,7 @@ libpng-manual.txt - A description on how to use and modify libpng
  libpng version 1.5.1beta04 - January 16, 2011
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
- Copyright (c) 1998-2010 Glenn Randers-Pehrson
+ Copyright (c) 1998-2011 Glenn Randers-Pehrson
 
  This document is released under the libpng license.
  For conditions of distribution and use, see the disclaimer
@@ -13,7 +13,7 @@ libpng-manual.txt - A description on how to use and modify libpng
 
  libpng versions 0.97, January 1998, through 1.5.1beta04 - January 16, 2011
  Updated and distributed by Glenn Randers-Pehrson
- Copyright (c) 1998-2010 Glenn Randers-Pehrson
+ Copyright (c) 1998-2011 Glenn Randers-Pehrson
 
  libpng 1.0 beta 6  version 0.96 May 28, 1997
  Updated and distributed by Andreas Dilger
diff --git a/libpng.3 b/libpng.3
index 37460465e..e31e32364 100644
--- a/libpng.3
+++ b/libpng.3
@@ -854,7 +854,7 @@ libpng-manual.txt - A description on how to use and modify libpng
  libpng version 1.5.1beta04 - January 16, 2011
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
- Copyright (c) 1998-2010 Glenn Randers-Pehrson
+ Copyright (c) 1998-2011 Glenn Randers-Pehrson
 
  This document is released under the libpng license.
  For conditions of distribution and use, see the disclaimer
@@ -864,7 +864,7 @@ libpng-manual.txt - A description on how to use and modify libpng
 
  libpng versions 0.97, January 1998, through 1.5.1beta04 - January 16, 2011
  Updated and distributed by Glenn Randers-Pehrson
- Copyright (c) 1998-2010 Glenn Randers-Pehrson
+ Copyright (c) 1998-2011 Glenn Randers-Pehrson
 
  libpng 1.0 beta 6  version 0.96 May 28, 1997
  Updated and distributed by Andreas Dilger