Update release docs
diff --git a/docs/doing-a-release.rst b/docs/doing-a-release.rst
index 81349a7..d790523 100644
--- a/docs/doing-a-release.rst
+++ b/docs/doing-a-release.rst
@@ -9,8 +9,7 @@
 The first step in doing a release is bumping the version number in the
 software.
 
-* Update the version number in ``cryptography/__about__.py`` and
-  ``docs/conf.py``.
+* Update the version number in ``cryptography/__about__.py``.
 * Do a commit indicating this.
 * Send a pull request with this.
 * Wait for it to be merged.