diff --git a/libpng-manual.txt b/libpng-manual.txt
index 4cfe7eb4f..49b221eb6 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 1.6.17beta01 - January 1, 2015
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
- Copyright (c) 1998-2014 Glenn Randers-Pehrson
+ Copyright (c) 1998-2015 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 1.6.17beta01 - January 1, 2015
  Updated and distributed by Glenn Randers-Pehrson
- Copyright (c) 1998-2014 Glenn Randers-Pehrson
+ Copyright (c) 1998-2015 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 baf848309..edc8a8ec3 100644
--- a/libpng.3
+++ b/libpng.3
@@ -507,7 +507,7 @@ libpng-manual.txt - A description on how to use and modify libpng
  libpng version 1.6.17beta01 - January 1, 2015
  Updated and distributed by Glenn Randers-Pehrson
  <glennrp at users.sourceforge.net>
- Copyright (c) 1998-2014 Glenn Randers-Pehrson
+ Copyright (c) 1998-2015 Glenn Randers-Pehrson
 
  This document is released under the libpng license.
  For conditions of distribution and use, see the disclaimer
@@ -517,7 +517,7 @@ libpng-manual.txt - A description on how to use and modify libpng
 
  libpng versions 0.97, January 1998, through 1.6.17beta01 - January 1, 2015
  Updated and distributed by Glenn Randers-Pehrson
- Copyright (c) 1998-2014 Glenn Randers-Pehrson
+ Copyright (c) 1998-2015 Glenn Randers-Pehrson
 
  libpng 1.0 beta 6 - version 0.96 - May 28, 1997
  Updated and distributed by Andreas Dilger
diff --git a/png.c b/png.c
index 241923d08..272f5c7d1 100644
--- a/png.c
+++ b/png.c
@@ -770,13 +770,13 @@ png_get_copyright(png_const_structrp png_ptr)
 #  ifdef __STDC__
    return PNG_STRING_NEWLINE \
      "libpng version 1.6.17beta01 - January 1, 2015" PNG_STRING_NEWLINE \
-     "Copyright (c) 1998-2014 Glenn Randers-Pehrson" PNG_STRING_NEWLINE \
+     "Copyright (c) 1998-2015 Glenn Randers-Pehrson" PNG_STRING_NEWLINE \
      "Copyright (c) 1996-1997 Andreas Dilger" PNG_STRING_NEWLINE \
      "Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc." \
      PNG_STRING_NEWLINE;
 #  else
       return "libpng version 1.6.17beta01 - January 1, 2015\
-      Copyright (c) 1998-2014 Glenn Randers-Pehrson\
+      Copyright (c) 1998-2015 Glenn Randers-Pehrson\
       Copyright (c) 1996-1997 Andreas Dilger\
       Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.";
 #  endif