Use https:// URLs when referring to python.org hosts.
diff --git a/Doc/using/unix.rst b/Doc/using/unix.rst
index 053bc63..067f80a 100644
--- a/Doc/using/unix.rst
+++ b/Doc/using/unix.rst
@@ -65,9 +65,9 @@
===============
If you want to compile CPython yourself, first thing you should do is get the
-`source <http://python.org/download/source/>`_. You can download either the
+`source <https://www.python.org/download/source/>`_. You can download either the
latest release's source or just grab a fresh `clone
-<http://docs.python.org/devguide/setup#getting-the-source-code>`_. (If you want
+<https://docs.python.org/devguide/setup#getting-the-source-code>`_. (If you want
to contribute patches, you will need a clone.)
The build process consists in the usual ::