diff --git a/flask_httpauth.py b/flask_httpauth.py
index 2798088..41beff8 100644
--- a/flask_httpauth.py
+++ b/flask_httpauth.py
@@ -15,7 +15,7 @@
 from werkzeug.datastructures import Authorization
 from werkzeug.security import safe_str_cmp
 
-__version__ = '3.3.0'
+__version__ = '3.3.1dev'
 
 
 class HTTPAuth(object):