diff --git a/bison.simple b/bison.simple
index b9a00ff4..fe702839 100644
--- a/bison.simple
+++ b/bison.simple
@@ -2,11 +2,11 @@
 #line 3 "bison.simple"
 
 /* Skeleton output parser for bison,
-   Copyright (C) 1984, 1989, 1990 Bob Corbett and Richard Stallman
+   Copyright (C) 1984, 1989, 1990 Free Software Foundation, Inc.
 
    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
-   the Free Software Foundation; either version 1, or (at your option)
+   the Free Software Foundation; either version 2, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
diff --git a/src/bison.s1 b/src/bison.s1
index b9a00ff4..fe702839 100644
--- a/src/bison.s1
+++ b/src/bison.s1
@@ -2,11 +2,11 @@
 #line 3 "bison.simple"
 
 /* Skeleton output parser for bison,
-   Copyright (C) 1984, 1989, 1990 Bob Corbett and Richard Stallman
+   Copyright (C) 1984, 1989, 1990 Free Software Foundation, Inc.
 
    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
-   the Free Software Foundation; either version 1, or (at your option)
+   the Free Software Foundation; either version 2, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,
diff --git a/src/bison.simple b/src/bison.simple
index b9a00ff4..fe702839 100644
--- a/src/bison.simple
+++ b/src/bison.simple
@@ -2,11 +2,11 @@
 #line 3 "bison.simple"
 
 /* Skeleton output parser for bison,
-   Copyright (C) 1984, 1989, 1990 Bob Corbett and Richard Stallman
+   Copyright (C) 1984, 1989, 1990 Free Software Foundation, Inc.
 
    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
-   the Free Software Foundation; either version 1, or (at your option)
+   the Free Software Foundation; either version 2, or (at your option)
    any later version.
 
    This program is distributed in the hope that it will be useful,