diff --git a/homeassistant/const.py b/homeassistant/const.py
index 307cbf9fe66..0bcfcd9d4ad 100644
--- a/homeassistant/const.py
+++ b/homeassistant/const.py
@@ -1,8 +1,8 @@
 # coding: utf-8
 """Constants used by Home Assistant components."""
 MAJOR_VERSION = 0
-MINOR_VERSION = 79
-PATCH_VERSION = '0b0'
+MINOR_VERSION = 80
+PATCH_VERSION = '0.dev0'
 __short_version__ = '{}.{}'.format(MAJOR_VERSION, MINOR_VERSION)
 __version__ = '{}.{}'.format(__short_version__, PATCH_VERSION)
 REQUIRED_PYTHON_VER = (3, 5, 3)