diff --git a/src/pretix/base/migrations/0010_auto_20150218_2048.py b/src/pretix/base/migrations/0010_auto_20150218_2048.py
new file mode 100644
index 000000000..2c60cbf95
--- /dev/null
+++ b/src/pretix/base/migrations/0010_auto_20150218_2048.py
@@ -0,0 +1,43 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import models, migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('auth', '0005_alter_user_last_login_null'),
+        ('pretixbase', '0009_eventsetting_organizersetting'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='cartposition',
+            name='session',
+        ),
+        migrations.AlterField(
+            model_name='user',
+            name='email',
+            field=models.EmailField(blank=True, max_length=254, db_index=True, verbose_name='E-mail', null=True),
+        ),
+        migrations.RemoveField(
+            model_name='user',
+            name='groups',
+        ),
+        migrations.AddField(
+            model_name='user',
+            name='groups',
+            field=models.ManyToManyField(blank=True, help_text='The groups this user belongs to. A user will get all permissions granted to each of their groups.', related_query_name='user', related_name='user_set', to='auth.Group', verbose_name='groups'),
+        ),
+        migrations.AlterField(
+            model_name='user',
+            name='last_login',
+            field=models.DateTimeField(blank=True, verbose_name='last login', null=True),
+        ),
+        migrations.AlterField(
+            model_name='user',
+            name='username',
+            field=models.CharField(blank=True, max_length=120, help_text='Letters, digits and ./+/-/_ only.', null=True),
+        ),
+    ]
diff --git a/src/pretix/settings.py b/src/pretix/settings.py
index 70f81cc97..dbadc08d9 100644
--- a/src/pretix/settings.py
+++ b/src/pretix/settings.py
@@ -42,7 +42,7 @@ INSTALLED_APPS = (
     'pretix.presale',
     'compressor',
     'bootstrap3',
-    'debug_toolbar.apps.DebugToolbarConfig',
+    # 'debug_toolbar.apps.DebugToolbarConfig',
     'djangoformsetjs',
     'pretix.plugins.testdummy',
     'pretix.plugins.timerestriction',
@@ -54,7 +54,7 @@ MIDDLEWARE_CLASSES = (
     'django.middleware.csrf.CsrfViewMiddleware',
     'django.contrib.auth.middleware.AuthenticationMiddleware',
     'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
-    'debug_toolbar.middleware.DebugToolbarMiddleware',
+    # 'debug_toolbar.middleware.DebugToolbarMiddleware',
     'django.contrib.messages.middleware.MessageMiddleware',
     'django.middleware.clickjacking.XFrameOptionsMiddleware',
     'pretix.control.middleware.PermissionMiddleware',
diff --git a/src/pretix/urls.py b/src/pretix/urls.py
index 5a67db51d..936fc6928 100644
--- a/src/pretix/urls.py
+++ b/src/pretix/urls.py
@@ -14,10 +14,11 @@ urlpatterns = patterns('',
 )
 
 if settings.DEBUG:
-    import debug_toolbar
-    urlpatterns += patterns('',
-        url(r'^__debug__/', include(debug_toolbar.urls)),
-    )
+    pass
+    # import debug_toolbar
+    # urlpatterns += patterns('',
+    #     url(r'^__debug__/', include(debug_toolbar.urls)),
+    # )
 
 urlpatterns += patterns('',
     url(r'', include(pretix.presale.urls, namespace='presale'))
diff --git a/src/requirements.txt b/src/requirements.txt
index 5aa4f7824..327daf49c 100644
--- a/src/requirements.txt
+++ b/src/requirements.txt
@@ -1,5 +1,5 @@
 # Functional requirements
-Django==1.7.3
+Django==1.8a1
 pytz
 django-bootstrap3
 -e git+https://github.com/pretix/django-formset-js.git@master#egg=django-formset-js