diff --git a/airtime_mvc/application/configs/constants.php b/airtime_mvc/application/configs/constants.php
index c27ed510a..95c8b3263 100644
--- a/airtime_mvc/application/configs/constants.php
+++ b/airtime_mvc/application/configs/constants.php
@@ -1,6 +1,6 @@
 <?php
 
-define('AIRTIME_VERSION', '1.8.2');
+define('AIRTIME_VERSION', '1.9.0-devel');
 define('AIRTIME_COPYRIGHT_DATE', '2010-2011');
 define('AIRTIME_REST_VERSION', '1.1');
 
diff --git a/python_apps/api_clients/api_client.py b/python_apps/api_clients/api_client.py
index ddd38bd92..0dcd423c7 100644
--- a/python_apps/api_clients/api_client.py
+++ b/python_apps/api_clients/api_client.py
@@ -19,7 +19,7 @@ import json
 import os
 from urlparse import urlparse
 
-AIRTIME_VERSION = "1.8.2"
+AIRTIME_VERSION = "1.9.0-devel"
 
 def api_client_factory(config):
     if config["api_client"] == "airtime":