diff --git a/calc/__init__.py b/calc/__init__.py
index d880a97..302f5ca 100644
--- a/calc/__init__.py
+++ b/calc/__init__.py
@@ -6,4 +6,4 @@
 
 from .calc import *
 
-__version__ = '4.0.0'
+__version__ = '4.0.1'