diff --git a/ndmanager/__init__.py b/ndmanager/__init__.py
index 8115b37..9b92c41 100644
--- a/ndmanager/__init__.py
+++ b/ndmanager/__init__.py
@@ -1,6 +1,6 @@
 """The NDManager module"""
 
-__version__ = "0.4.1"
+__version__ = "0.5.0"
 
 from .API.endf6 import Endf6
 from .API.iaea import IAEA, IAEALibrary, IAEASublibrary