diff --git a/CHANGES.txt b/CHANGES.txt
index 9f6d28c..b881388 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,6 +1,13 @@
 Changes
 =======
 
+4.0.1 (2017-12-19)
+------------------
+
+- Fixes issue when not using `AXES_USERNAME_FORM_FIELD`
+  [camilonova]
+
+
 4.0.0 (2017-12-18)
 ------------------
 
diff --git a/axes/__init__.py b/axes/__init__.py
index ab03b0d..74f9c4c 100644
--- a/axes/__init__.py
+++ b/axes/__init__.py
@@ -1,4 +1,4 @@
-__version__ = '4.0.0'
+__version__ = '4.0.1'
 
 default_app_config = 'axes.apps.AppConfig'