1 files changed, 1 insertions, 1 deletions

diff --git a/doc/lispintro/lambda-3.eps b/doc/lispintro/lambda-3.eps
index 95610f692ff..a3b419a9e80 100644
--- a/doc/lispintro/lambda-3.eps
+++ b/doc/lispintro/lambda-3.eps
@@ -19,7 +19,7 @@
 % GNU General Public License for more details.
 %
 % You should have received a copy of the GNU General Public License
-% along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
+% along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
 
 /tgifdict 132 dict def
 tgifdict begin