diff --git a/README.rst b/README.rst
index 56f273fb..f1c7e6d4 100644
--- a/README.rst
+++ b/README.rst
@@ -332,8 +332,8 @@ with the following terms:
 
    You should have received a copy of the GNU General Public License
    along with this program; if not, see
-   <http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>.
+   <https://www.gnu.org/licenses/old-licenses/gpl-2.0.html>.
 
-.. _GPL v2: http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+.. _GPL v2: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 
-``dictionary.txt`` and the other ``dictionary_*.txt`` files are derivative works of English Wikipedia and are released under the `Creative Commons Attribution-Share-Alike License 3.0 <http://creativecommons.org/licenses/by-sa/3.0/>`_.
+``dictionary.txt`` and the other ``dictionary_*.txt`` files are derivative works of English Wikipedia and are released under the `Creative Commons Attribution-Share-Alike License 3.0 <https://creativecommons.org/licenses/by-sa/3.0/>`_.
diff --git a/codespell_lib/_codespell.py b/codespell_lib/_codespell.py
index e1783b5a..c7ce66be 100644
--- a/codespell_lib/_codespell.py
+++ b/codespell_lib/_codespell.py
@@ -10,7 +10,7 @@
 #
 # You should have received a copy of the GNU General Public License
 # along with this program; if not, see
-# http://www.gnu.org/licenses/old-licenses/gpl-2.0.html.
+# https://www.gnu.org/licenses/old-licenses/gpl-2.0.html.
 """
 Copyright (C) 2010-2011  Lucas De Marchi <lucas.de.marchi@gmail.com>
 Copyright (C) 2011  ProFUSION embedded systems