diff --git a/copads/__init__.py b/copads/__init__.py
index cc37dfb..a580f87 100644
--- a/copads/__init__.py
+++ b/copads/__init__.py
@@ -26,7 +26,7 @@
 version 2.
 """
 
-__version__ = '0.5.0'
+__version__ = '0.5.1'
 
 __author__ = 'Maurice H.T. Ling <mauriceling@acm.org>'