diff --git a/metric_fastners.scad b/metric_fastners.scad
index 2849fea..08b371d 100644
--- a/metric_fastners.scad
+++ b/metric_fastners.scad
@@ -14,7 +14,7 @@
  *
  *  You should have received a copy of the GNU General Public License
  *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  *
 */
 
diff --git a/regular_shapes.scad b/regular_shapes.scad
index acba0bc..667d272 100644
--- a/regular_shapes.scad
+++ b/regular_shapes.scad
@@ -14,7 +14,7 @@
  *
  *  You should have received a copy of the GNU General Public License
  *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  *
 */