diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -15,18 +15,18 @@
 
 See the [Developers Guide](https://developers.google.com/api-client-library/python/start/get_started) for more detailed instructions and additional documentation.
 
+# Python Version
+Python 2.6 or 2.7 is required. Python 3.x is not yet supported.
+
 # Third Party Libraries and Dependencies
 The following libraries will be installed when you install the client library:
 * [httplib2](https://github.com/jcgregorio/httplib2)
 * [uri-templates](https://github.com/uri-templates/uritemplate-py)
 
-Depending on your version of Python, these libraries may also be installed:
-* [simplejson](https://pypi.python.org/pypi/simplejson/)
-
 For development you will also need the following libraries:
 * [WebTest](http://pythonpaste.org/webtest/)
 * [pycrypto](https://pypi.python.org/pypi/pycrypto)
 * [pyopenssl](https://pypi.python.org/pypi/pyOpenSSL)
 
 # Contributing
-Please see the [contributing page](http://google.github.io/google-api-python-client/contributing.html) for more information. In particular, we love pull requests - but please make sure to sign the contributor license agreement.
\ No newline at end of file
+Please see the [contributing page](http://google.github.io/google-api-python-client/contributing.html) for more information. In particular, we love pull requests - but please make sure to sign the contributor license agreement.