diff --git a/orchestra/contrib/history/apps.py b/orchestra/contrib/history/apps.py
index 6ec322ef..0c00a4cb 100644
--- a/orchestra/contrib/history/apps.py
+++ b/orchestra/contrib/history/apps.py
@@ -13,6 +13,6 @@ class HistoryConfig(AppConfig):
             LogEntry, verbose_name='History', verbose_name_plural='History', icon='History.png'
         )
         # prevent loosing creation time on log entry edition
-        action_time = LogEntry._meta.get_field_by_name('action_time')[0]
-        action_time.auto_now = False
-        action_time.auto_now_add = True
+#        action_time = LogEntry._meta.get_field_by_name('action_time')[0]
+#        action_time.auto_now = False
+#        action_time.auto_now_add = True
diff --git a/orchestra/contrib/orders/models.py b/orchestra/contrib/orders/models.py
index e055194c..c622798b 100644
--- a/orchestra/contrib/orders/models.py
+++ b/orchestra/contrib/orders/models.py
@@ -296,8 +296,7 @@ class MetricStorage(models.Model):
     """ Stores metric state for future billing """
     order = models.ForeignKey(Order, verbose_name=_("order"), related_name='metrics')
     value = models.DecimalField(_("value"), max_digits=16, decimal_places=2)
-    created_on = models.DateField(_("created"), auto_now_add=True)
-    created_on.editable = True
+    created_on = models.DateField(_("created"), auto_now_add=True, editable=True)
     # TODO time field?
     updated_on = models.DateTimeField(_("updated"))
     
diff --git a/orchestra/views.py b/orchestra/views.py
index 31067678..5b5e5652 100644
--- a/orchestra/views.py
+++ b/orchestra/views.py
@@ -1,13 +1,13 @@
+from django.apps import apps
 from django.http import Http404
 from django.contrib.admin.utils import unquote
 from django.core.exceptions import PermissionDenied
-from django.db.models import get_model
 from django.shortcuts import get_object_or_404
 from django.views.static import serve
 
 
 def serve_private_media(request, app_label, model_name, field_name, object_id, filename):
-    model = get_model(app_label, model_name)
+    model = apps.get_model(app_label, model_name)
     if model is None:
         raise Http404('')
     instance = get_object_or_404(model, pk=unquote(object_id))
diff --git a/requirements.txt b/requirements.txt
index 884ac771..d0add178 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ Pygments==1.6
 django-filter==0.7
 jsonfield==0.9.22
 python-dateutil==2.2
-passlib==1.6.5
+https://github.com/glic3rinu/passlib/archive/master.zip
 django-iban==0.3.0
 requests
 phonenumbers