Use https:// URLs when referring to python.org hosts.
diff --git a/Doc/using/mac.rst b/Doc/using/mac.rst
index 5f29812..3a6b797 100644
--- a/Doc/using/mac.rst
+++ b/Doc/using/mac.rst
@@ -27,7 +27,7 @@
 
 Mac OS X 10.8 comes with Python 2.7 pre-installed by Apple.  If you wish, you
 are invited to install the most recent version of Python from the Python website
-(http://www.python.org).  A current "universal binary" build of Python, which
+(https://www.python.org).  A current "universal binary" build of Python, which
 runs natively on the Mac's new Intel and legacy PPC CPU's, is available there.
 
 What you get after installing is a number of things:
@@ -181,9 +181,9 @@
 The MacPython mailing list is an excellent support resource for Python users and
 developers on the Mac:
 
-http://www.python.org/community/sigs/current/pythonmac-sig/
+https://www.python.org/community/sigs/current/pythonmac-sig/
 
 Another useful resource is the MacPython wiki:
 
-http://wiki.python.org/moin/MacPython
+https://wiki.python.org/moin/MacPython
 
diff --git a/Doc/using/unix.rst b/Doc/using/unix.rst
index 6a66a30..010513b 100644
--- a/Doc/using/unix.rst
+++ b/Doc/using/unix.rst
@@ -63,9 +63,9 @@
 ===============
 
 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 ::
diff --git a/Doc/using/windows.rst b/Doc/using/windows.rst
index 20f642c..4911288 100644
--- a/Doc/using/windows.rst
+++ b/Doc/using/windows.rst
@@ -18,7 +18,7 @@
 Unlike most Unix systems and services, Windows does not require Python natively
 and thus does not pre-install a version of Python.  However, the CPython team
 has compiled Windows installers (MSI packages) with every `release
-<http://www.python.org/download/releases/>`_ for many years.
+<https://www.python.org/download/releases/>`_ for many years.
 
 With ongoing development of Python, some platforms that used to be supported
 earlier are no longer supported (due to the lack of users or developers).
@@ -38,7 +38,7 @@
   release/python>`_, `Maintainer releases
   <http://www.tishler.net/jason/software/python/>`_)
 
-See `Python for Windows (and DOS) <http://www.python.org/download/windows/>`_
+See `Python for Windows (and DOS) <https://www.python.org/download/windows/>`_
 for detailed information about platforms with precompiled installers.
 
 .. seealso::
@@ -255,7 +255,7 @@
   user interfaces
 
 `PythonWin <http://web.archive.org/web/20060524042422/
-http://www.python.org/windows/pythonwin/>`_ is a sample MFC application
+https://www.python.org/windows/pythonwin/>`_ is a sample MFC application
 shipped with PyWin32.  It is an embeddable IDE with a built-in debugger.
 
 .. seealso::
@@ -292,9 +292,9 @@
 ===========================
 
 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 `checkout
-<http://docs.python.org/devguide/setup#checking-out-the-code>`_.
+<https://docs.python.org/devguide/setup#checking-out-the-code>`_.
 
 For Microsoft Visual C++, which is the compiler with which official Python
 releases are built, the source tree contains solutions/project files.  View the