diff -up xmakemol-5.16/elements.fsf xmakemol-5.16/elements
--- xmakemol-5.16/elements.fsf	2007-08-25 14:27:32.000000000 +0300
+++ xmakemol-5.16/elements	2018-09-07 08:40:13.744107716 +0300
@@ -13,8 +13,8 @@
 !
 ! You should have received a copy of the GNU General Public License
 ! along with XMakemol; see the file COPYING. If not, write to the Free
-! Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-! 02111-1307 USA
+! Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+! 02110-1301, USA.
 !
 ! Z     Symbol       Mass        Colour          Cov rad         VdW rad
   0     DU           0.000       White           0.500           0.000
diff -up xmakemol-5.16/xmake_anim.pl.fsf xmakemol-5.16/xmake_anim.pl
--- xmakemol-5.16/xmake_anim.pl.fsf	2007-08-25 14:25:41.000000000 +0300
+++ xmakemol-5.16/xmake_anim.pl	2018-09-07 08:40:27.354023553 +0300
@@ -15,8 +15,8 @@
 
 #  You should have received a copy of the GNU General Public License
 #  along with XMakemol; see the file COPYING. If not, write to the
-#  Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
-#  MA 02111-1307 USA
+#  Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+#  Boston, MA 02110-1301, USA.
 
 # Script to make an animated gif from a series of .xpm files produced
 # by XMakemol. Uses the `convert' and `gifsicle' programs.