diff --git a/pigar/_version.py b/pigar/_version.py
index bab7b02..86e0dad 100644
--- a/pigar/_version.py
+++ b/pigar/_version.py
@@ -2,5 +2,5 @@
 
 from __future__ import print_function, division, absolute_import
 
-version = __version__ = '0.9.0'
+version = __version__ = '0.9.1'
 version_info = [int(num) for num in version.split('.')]