diff --git a/pep-0505.txt b/pep-0505.txt
index 8397520e5..334c4e71d 100644
--- a/pep-0505.txt
+++ b/pep-0505.txt
@@ -504,7 +504,7 @@ Usage Of ``None`` In The Standard Library
 
 The previous sections show some code patterns that are claimed to be "common",
 but how common are they? The attached script `find-pep505.py
-<https://github.com/python/peps/tree/master/pep-0505/find-pep505.py>`_ is meant to
+<https://github.com/python/peps/blob/master/pep-0505/find-pep505.py>`_ is meant to
 answer this question. It uses the ``ast`` module to search for variations of the
 following patterns in any ``*.py`` file.
 
@@ -577,11 +577,11 @@ The script prints out any matches it finds. Sample::
     hand, we assume that ``and`` is always incorrect for safe navigation.
 
 The script has been tested against `test.py
-<https://github.com/python/peps/tree/master/pep-0505/test.py>`_ and the Python 3.4
+<https://github.com/python/peps/blob/master/pep-0505/test.py>`_ and the Python 3.4
 standard library, but it should work on any arbitrary Python 3 source code. The
 complete output from running it against the standard library is attached to this
 proposal as
-`find-pep505.out <https://github.com/python/peps/tree/master/tip/pep-0505/find-pep505.out>`_.
+`find-pep505.out <https://github.com/python/peps/blob/master/pep-0505/find-pep505.out>`_.
 
 The script counts how many matches it finds and prints the totals at the
 end::