diff --git a/Doc/library/unittest.rst b/Doc/library/unittest.rst
index 06368fcb3d1f36..2638d6c68c6f28 100644
--- a/Doc/library/unittest.rst
+++ b/Doc/library/unittest.rst
@@ -87,7 +87,7 @@ need to derive from a specific class.
       Kent Beck's original paper on testing frameworks using the pattern shared
       by :mod:`unittest`.
 
-   `Nose <https://nose.readthedocs.org/en/latest/>`_ and `py.test <http://pytest.org>`_
+   `Nose <https://nose.readthedocs.io/>`_ and `pytest <https://docs.pytest.org/>`_
       Third-party unittest frameworks with a lighter-weight syntax for writing
       tests.  For example, ``assert func(10) == 42``.