diff --git a/README.rst b/README.rst
index 8bc6376..029e759 100644
--- a/README.rst
+++ b/README.rst
@@ -65,6 +65,13 @@ Links
 Changes
 -------
 
+0.5.0 - 2016-05-30
+``````````````````
+
+* PyCon 2016 PDX release
+
+* Add support for Flake8 3.0
+
 0.4.0 - 2016-01-27
 ``````````````````
 
diff --git a/mccabe.py b/mccabe.py
index 3823757..ff25aa6 100644
--- a/mccabe.py
+++ b/mccabe.py
@@ -14,7 +14,7 @@
 except ImportError:   # Python 2.5
     from flake8.util import ast, iter_child_nodes
 
-__version__ = '0.4.0'
+__version__ = '0.5.0'
 
 
 class ASTVisitor(object):
@@ -236,7 +236,7 @@ def __init__(self, tree, filename):
     def add_options(cls, parser):
         flag = '--max-complexity'
         kwargs = {
-            'defaults': -1,
+            'default': -1,
             'action': 'store',
             'type': 'int',
             'help': 'McCabe complexity threshold',