Mobly Release 1.9.1. (#622)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index db5dfe6..5c4de1d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,14 @@
 # Mobly Release History
 
+
+## Mobly Release 1.9.1: Documentation Fix
+
+Fix readthedocs documentation bug introduced in 1.9.
+Strictly documentation fix, no code change.
+
+[Full list of changes](https://github.com/google/mobly/milestone/22?closed=1)
+
+
 ## Mobly Release 1.9: UID Support; `AndroidDevice` and General Runner Improvements
 
 ### New
diff --git a/setup.py b/setup.py
index 412e39c..18d9854 100755
--- a/setup.py
+++ b/setup.py
@@ -52,13 +52,13 @@
 def main():
     setuptools.setup(
         name='mobly',
-        version='1.9',
+        version='1.9.1',
         maintainer='Ang Li',
         maintainer_email='mobly-github@googlegroups.com',
         description='Automation framework for special end-to-end test cases',
         license='Apache2.0',
         url='https://github.com/google/mobly',
-        download_url='https://github.com/google/mobly/tarball/1.9',
+        download_url='https://github.com/google/mobly/tarball/1.9.1',
         packages=setuptools.find_packages(exclude=['tests']),
         include_package_data=False,
         scripts=['tools/sl4a_shell.py', 'tools/snippet_shell.py'],