diff --git a/CHANGES.txt b/CHANGES.txt
index 26788b7..e5aadcc 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,6 +1,10 @@
 Changes
 =======
 
+0.9.1 (2015-10-26)
+------------------
+- Add missing package (polyline) to setup.py
+
 0.9.0 (2015-10-23)
 ------------------
 - Improved pansharpening
diff --git a/landsat/__init__.py b/landsat/__init__.py
index e4e49b3..8969d49 100644
--- a/landsat/__init__.py
+++ b/landsat/__init__.py
@@ -1 +1 @@
-__version__ = '0.9.0'
+__version__ = '0.9.1'
diff --git a/setup.py b/setup.py
index 4395dab..e4afc11 100644
--- a/setup.py
+++ b/setup.py
@@ -44,7 +44,8 @@ def readme():
       'scipy>=0.16.0',
       'scikit-image>=0.11.3',
       'homura>=0.1.2',
-      'boto>=2.38.0'
+      'boto>=2.38.0',
+      'polyline==1.1'
     ],
     test_suite='nose.collector',
     tests_require=test_requirements