Switch to Sphinx 1.0.5.
diff --git a/Doc/README.txt b/Doc/README.txt
index d77a3f7..f3fe9f1 100644
--- a/Doc/README.txt
+++ b/Doc/README.txt
@@ -78,7 +78,7 @@
 
 You'll need to install the Sphinx package, either by checking it out via ::
 
-   svn co http://svn.python.org/projects/external/Sphinx-1.0.4/sphinx tools/sphinx
+   svn co http://svn.python.org/projects/external/Sphinx-1.0.5/sphinx tools/sphinx
 
 or by installing it from PyPI.