diff --git a/docs/contributing/python-style-guide.rst b/docs/contributing/python-style-guide.rst
--- a/docs/contributing/python-style-guide.rst
+++ b/docs/contributing/python-style-guide.rst
@@ -57,10 +57,10 @@
 * docstrings should produce a nice API documentation when run through
   `Sphinx <http://www.sphinx-doc.org/en/stable/>`_, in particular:
 * docstrings should be written in
-  `reStructuredText <http://www.sphinx-doc.org/en/stable/rest.html>`_
+  `reStructuredText <https://www.sphinx-doc.org/en/master/usage/restructuredtext/basics.html>`_
 * docstrings should use the
-  `Napoleon style <http://www.sphinx-doc.org/en/stable/ext/napoleon.html>`_
+  `Napoleon style <https://www.sphinx-doc.org/en/master/usage/extensions/napoleon.html>`_
   (Google variant) to document arguments, return values, etc.
 
-* see also: a `comprehensive style example <http://www.sphinx-doc.org/en/stable/ext/example_google.html#example-google>`_
+* see also: a `comprehensive style example <https://www.sphinx-doc.org/en/master/usage/extensions/example_google.html>`_
 * see also: :ref:`sphinx-gotchas`