diff --git a/omg/__init__.py b/omg/__init__.py
index c13ed2b..b9c7cfb 100644
--- a/omg/__init__.py
+++ b/omg/__init__.py
@@ -24,7 +24,7 @@
 USE OR OTHER DEALINGS IN THE SOFTWARE.
 """
 
-__version__ = '0.4.0'
+__version__ = '0.5.0'
 __author__  = 'Devin Acker, Fredrik Johansson'
 
 from omg.wadio import *
diff --git a/setup.cfg b/setup.cfg
index 3c6e79c..af57bc0 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,2 +1 @@
 [bdist_wheel]
-universal=1
diff --git a/setup.py b/setup.py
index d4078da..1eb7554 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@
 
 setup(
 	name = 'omgifol',
-	version = '0.4.0',
+	version = '0.5.0',
 	description = 'A Python library for manipulation of Doom WAD files',
 	url = 'https://github.com/devinacker/omgifol',
 	author = 'Devin Acker, Fredrik Johansson',
@@ -17,6 +17,7 @@
 		'Programming Language :: Python :: 3',
 		'Operating System :: OS Independent',
 	],
+	python_requires = ">=3.3",
 	packages = find_packages(exclude = ['demo']),
 	scripts = glob.glob("demo/*.py"),
 )