diff --git a/spectral/__init__.py b/spectral/__init__.py
index b4c40f4..a6d3d68 100644
--- a/spectral/__init__.py
+++ b/spectral/__init__.py
@@ -29,7 +29,7 @@
 # Thomas Boggs, tboggs@users.sourceforge.net
 #
 
-__version__ = '0.12'
+__version__ = '0.13'
 
 import sys
 if sys.byteorder == 'little':