diff --git a/LICENSE b/LICENSE
index 92dd0ea..22fc3f2 100644
--- a/LICENSE
+++ b/LICENSE
@@ -5,7 +5,25 @@
 Copyright (c) 1996, 1997 Andreas Dilger
 (libpng versions 0.90, December 1996, through 0.96, May 1997)
 Copyright (c) 1998, 1999 Glenn Randers-Pehrson
-(libpng versions 0.97, January 1998, through 1.0.4, September 19, 1999)
+(libpng versions 0.97, January 1998, through 1.0.4c, October 1, 1999)
+
+For the purposes of this copyright and license, "Contributing Authors"
+is defined as the following set of individuals:
+
+   John Bowler
+   Kevin Bracey
+   Sam Bushell
+   Andreas Dilger
+   Magnus Holmgren
+   Tom Lane
+   Dave Martindale
+   Glenn Randers-Pehrson
+   Greg Roelofs
+   Guy Eric Schalnat
+   Paul Schmidt
+   Tom Tanner
+   Willem van Schaik
+   Tim Wegner
 
 The PNG Reference Library is supplied "AS IS".  The Contributing Authors
 and Group 42, Inc. disclaim all warranties, expressed or implied,
@@ -37,5 +55,5 @@
 appreciated.
 
 Glenn Randers-Pehrson
-randeg at alum.rpi.edu
-September 19, 1999
+randeg@alum.rpi.edu
+October 1, 1999