diff --git a/setup.py b/setup.py
index 91717eb..d61e047 100644
--- a/setup.py
+++ b/setup.py
@@ -13,7 +13,7 @@ classifiers = ['Development Status :: 3 - Alpha',
                'Topic :: System :: Hardware']
 
 setup(name             = 'CHIP_IO',
-      version          = '0.4.0',
+      version          = '0.5.0',
       author           = 'Robert Wolterman',
       author_email     = 'robert.wolterman@gmail.com',
       description      = 'A module to control CHIP IO channels',
diff --git a/source/constants.c b/source/constants.c
index eb99f7d..10424d6 100644
--- a/source/constants.c
+++ b/source/constants.c
@@ -85,6 +85,6 @@ void define_constants(PyObject *module)
    bcm = Py_BuildValue("i", BCM);
    PyModule_AddObject(module, "BCM", bcm);
 
-   version = Py_BuildValue("s", "0.4.0");
+   version = Py_BuildValue("s", "0.5.0");
    PyModule_AddObject(module, "VERSION", version);
 }