diff --git a/authosm/models.py b/authosm/models.py
index 74c1f1e..09adfed 100644
--- a/authosm/models.py
+++ b/authosm/models.py
@@ -67,7 +67,7 @@
     current_project = models.CharField(_('project_id'), max_length=255)
 
     psw = models.CharField(_('psw'), max_length=36)
-    token = models.CharField(_('token'), max_length=255)
+    token = models.CharField(_('token'), max_length=512)
     project_id = models.CharField(_('project_id'), max_length=36)
     project_name = models.CharField(_('project_name'), max_length=36, default='')
     token_expires = models.FloatField(_('token_expires'), max_length=36)