Fix link.

ionelmc · ionelmc · commit 89cccd5607f1 · 2023-01-04T20:21:16.000+02:00
diff --git a/CONTRIBUTING.rst b/CONTRIBUTING.rst
@@ -49,7 +49,7 @@ To set up `python-lazy-object-proxy` for local development:
 
    Now you can make your changes locally.
 
-4. When you're done making changes run all the checks and docs builder with `tox <https://tox.readthedocs.io/en/latest/install.html>`_ one command::
+4. When you're done making changes run all the checks and docs builder with `tox <https://tox.wiki/en/latest/installation.html>`_ one command::
 
     tox
 
