diff --git a/README.md b/README.md
index dcc684b..76bf370 100644
--- a/README.md
+++ b/README.md
@@ -4,15 +4,15 @@ django based api server
 
 ## setup
 
-    apt-get install virtualenv git ipython3
+    apt-get install git ipython3 python3-venv
 
     apt-get install python3-pil python3-psycopg2 \
-        python3-lxml python3-requests python3-six
+        python3-lxml python3-requests python3-six python3-anyjson
 
     git clone https://git.0x2620.org/oxdata.git
     cd oxdata
-    virtualenv -p /usr/bin/python3 --system-site-packages .
-    ./bin/pip install -r requirements.txt
+    python3 -m venv --system-site-packages venv
+    ./venv/bin/pip install -r requirements.txt
 
 
  Install rabbitmq and carrot:
@@ -26,4 +26,3 @@ django based api server
 ## deploy:
     adduser --disabled-password --disabled-login --home /srv/oxdata/ oxdata
 
-
diff --git a/oxdata/cover/models.py b/oxdata/cover/models.py
index 8470809..ad4cc8c 100644
--- a/oxdata/cover/models.py
+++ b/oxdata/cover/models.py
@@ -99,6 +99,6 @@ class Cover(models.Model):
     created = models.DateTimeField(auto_now_add=True)
     modified = models.DateTimeField(auto_now=True)
 
-    isbn = models.ForeignKey(MovieId, related_name='cover')
+    isbn = models.ForeignKey(MovieId, related_name='cover', on_delete=models.CASCADE)
     cover = models.ImageField(max_length=255, upload_to=cover_image_path)
 
diff --git a/oxdata/cover/urls.py b/oxdata/cover/urls.py
index 2168cbd..42001a2 100644
--- a/oxdata/cover/urls.py
+++ b/oxdata/cover/urls.py
@@ -1,9 +1,8 @@
-from __future__ import division, print_function, absolute_import
-from django.conf.urls import url
+from django.urls import path, re_path
 
 from . import views
 
 urlpatterns = [
-    url(r'^$', views.cover),
+    re_path(r'^$', views.cover),
 ]
 
diff --git a/oxdata/lookup/urls.py b/oxdata/lookup/urls.py
index 29a5484..af50d54 100644
--- a/oxdata/lookup/urls.py
+++ b/oxdata/lookup/urls.py
@@ -1,10 +1,20 @@
-from __future__ import division, print_function, absolute_import
-
-from django.conf.urls import url
+from django.urls import path, re_path
 
 from . import views
 
-urlpatterns = [
-    url(r'^$', views.ids),
-    url(r'^urls$', views.urls),
+urls = [
+    [
+        path(r'', views.ids),
+        path(r'urls', views.urls),
+    ],
+    'lookup',
+    'lookup'
+]
+urls2 = [
+    [
+        path(r'', views.ids),
+        path(r'urls', views.urls),
+    ],
+    'lookup2',
+    'lookup2'
 ]
diff --git a/oxdata/manage.py b/oxdata/manage.py
index 057af0b..12301ea 100755
--- a/oxdata/manage.py
+++ b/oxdata/manage.py
@@ -1,19 +1,46 @@
 #!/usr/bin/env python3
 import os
 import sys
+import argparse
 
-root_dir = os.path.normpath(os.path.abspath(os.path.dirname(__file__)))
-os.chdir(root_dir)
 
-# using virtualenv's activate_this.py to reorder sys.path
-activate_this = os.path.join(root_dir, '..', 'bin', 'activate_this.py')
-with open(activate_this) as f:
-    code = compile(f.read(), activate_this, 'exec')
-    exec(code, dict(__file__=activate_this))
-# execfile(activate_this, dict(__file__=activate_this))
+def activate_venv(base):
+    if os.path.exists(base):
+        old_os_path = os.environ.get("PATH", "")
+        os.environ["PATH"] = os.path.join(base, "bin") + os.pathsep + old_os_path
+        version = "%s.%s" % (sys.version_info.major, sys.version_info.minor)
+        site_packages = os.path.join(base, "lib", "python%s" % version, "site-packages")
+        prev_sys_path = list(sys.path)
+        import site
+
+        site.addsitedir(site_packages)
+        sys.real_prefix = sys.prefix
+        sys.prefix = base
+        # Move the added items to the front of the path:
+        new_sys_path = []
+        for item in list(sys.path):
+            if item not in prev_sys_path:
+                new_sys_path.append(item)
+                sys.path.remove(item)
+        sys.path[:0] = new_sys_path
+
+
+def main():
+    """Run administrative tasks."""
+    root_dir = os.path.normpath(os.path.abspath(os.path.dirname(__file__)))
+    activate_venv(os.path.normpath(os.path.join(root_dir, "..", "venv")))
+
+    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "settings")
+    try:
+        from django.core.management import execute_from_command_line
+    except ImportError as exc:
+        raise ImportError(
+            "Couldn't import Django. Are you sure it's installed and "
+            "available on your PYTHONPATH environment variable? Did you "
+            "forget to activate a virtual environment?"
+        ) from exc
+    execute_from_command_line(sys.argv)
 
 
 if __name__ == "__main__":
-    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "settings")
-    from django.core.management import execute_from_command_line
-    execute_from_command_line(sys.argv)
+    main()
diff --git a/oxdata/movie/models.py b/oxdata/movie/models.py
index 74a7ba1..8b9ac87 100644
--- a/oxdata/movie/models.py
+++ b/oxdata/movie/models.py
@@ -13,7 +13,6 @@ import json
 from django.db import models
 from django.conf import settings
 import ox
-from oxdjango.fields import DictField
 
 from lookup.models import get_movie_id
 from poster.models import getPosters
@@ -102,7 +101,7 @@ class Imdb(models.Model):
     seriesTitle = models.CharField(max_length=1000, blank=True, default='')
 
     invalid = models.BooleanField(default=False)
-    patch = DictField(default=None, blank=True, null=True)
+    patch = models.JSONField(default=None, blank=True, null=True)
 
     def __str__(self):
         return "[%s] %s%s" % (self.imdb, self.title, self.year and ' (%s)' % self.year or '')
@@ -185,7 +184,8 @@ class Imdb(models.Model):
 
         if 'votes' in data:
             max_votes = ox.web.imdb.max_votes()
-            data['votes'] = 100 * float(data['votes']) / max_votes
+            if max_votes:
+                data['votes'] = 100 * float(data['votes']) / max_votes
         else:
             data['votes'] = 0
 
@@ -299,7 +299,7 @@ class Match(models.Model):
     ]
 
     key = models.CharField(max_length=28, db_index=True)
-    item = models.ForeignKey(Imdb, related_name='matches')
+    item = models.ForeignKey(Imdb, related_name='matches', on_delete=models.CASCADE)
 
     def __str__(self):
         return '%s(%s)' % (self.hexdigest(), self.item.imdb)
diff --git a/oxdata/oxdjango/api/urls.py b/oxdata/oxdjango/api/urls.py
index 159c4ff..a188704 100644
--- a/oxdata/oxdjango/api/urls.py
+++ b/oxdata/oxdjango/api/urls.py
@@ -1,13 +1,17 @@
 # -*- coding: utf-8 -*-
 from __future__ import absolute_import
 
-from django.conf.urls import url
+from django.urls import path, re_path
 
 from . import views
 
 from . import actions
 actions.autodiscover()
 
-urlpatterns = [
-    url(r'^$', views.api),
+urls = [
+    [
+        path(r'', views.api),
+    ],
+    'api',
+    'api'
 ]
diff --git a/oxdata/poster/models.py b/oxdata/poster/models.py
index 33e3e18..4e88c0e 100644
--- a/oxdata/poster/models.py
+++ b/oxdata/poster/models.py
@@ -69,7 +69,7 @@ class PosterCache(models.Model):
     created = models.DateTimeField(auto_now_add=True)
     modified = models.DateTimeField(auto_now=True)
 
-    movie_id = models.ForeignKey(MovieId, related_name='postercache')
+    movie_id = models.ForeignKey(MovieId, related_name='postercache', on_delete=models.CASCADE)
     url = models.CharField(max_length=1024)
     site = models.CharField(max_length=255)
     site_id = models.CharField(max_length=1024)
@@ -144,10 +144,12 @@ def get_poster_urls(m):
         #for poster in ox.web.movieposterdb.get_data(m.imdb_id)['posters']:
         #    addPoster(poster, 'movieposterdb.com', m.imdb_id)
 
+        '''
         poster = ox.web.piratecinema.get_poster_url(m.imdb_id)
         if poster:
             m.postercache.filter(url__contains='piratecinema.org', failed=True).delete()
             addPoster(poster, 'piratecinema.org', m.imdb_id)
+        '''
 
     if m.criterion_id:
         #if settings.DEBUG:
diff --git a/oxdata/poster/urls.py b/oxdata/poster/urls.py
index a4d8863..210ac68 100644
--- a/oxdata/poster/urls.py
+++ b/oxdata/poster/urls.py
@@ -1,10 +1,12 @@
-from __future__ import division, print_function, absolute_import
-
-from django.conf.urls import url
+from django.urls import path, re_path
 
 from . import views
 
 
-urlpatterns = [
-    url(r'^$', views.poster),
+urls = [
+    [
+        path(r'', views.poster),
+    ],
+    'poster',
+    'poster'
 ]
diff --git a/oxdata/settings.py b/oxdata/settings.py
index ab0246f..101625e 100644
--- a/oxdata/settings.py
+++ b/oxdata/settings.py
@@ -2,8 +2,6 @@
 # Django settings for oxdata project.
 import os
 from os.path import join, normpath, dirname
-import djcelery
-djcelery.setup_loader()
 
 SITENAME = 'oxdata'
 
@@ -26,6 +24,8 @@ DATABASES = {
     }    
 }
 
+DEFAULT_AUTO_FIELD="django.db.models.BigAutoField"
+
 # Local time zone for this installation. Choices can be found here:
 # http://en.wikipedia.org/wiki/List_of_tz_zones_by_name
 # although not all choices may be available on all operating systems.
@@ -107,7 +107,7 @@ TEMPLATES = [
     },
 ]
 
-MIDDLEWARE_CLASSES = (
+MIDDLEWARE = (
     'django.middleware.common.CommonMiddleware',
     'django.contrib.sessions.middleware.SessionMiddleware',
     'django.contrib.auth.middleware.AuthenticationMiddleware',
@@ -126,7 +126,6 @@ INSTALLED_APPS = (
     'django.contrib.admin',
     'django.contrib.humanize',
     'django_extensions',
-    'djcelery',
 
     'lookup',
     'movie',
diff --git a/oxdata/urls.py b/oxdata/urls.py
index c67fd6d..780c8a0 100644
--- a/oxdata/urls.py
+++ b/oxdata/urls.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 import os
 
-from django.conf.urls import url, include
+from django.urls import path, re_path
 from oxdjango.http import HttpFileResponse
 from django.conf import settings
 import django.views.static
@@ -21,28 +21,28 @@ def serve_static_file(path, location, content_type):
 
 
 urlpatterns = [
-    url(r'^$', views.index),
-    url(r'^api/?', include(oxdjango.api.urls)),
-    url(r'^poster/', include(poster.urls)),
-    url(r'^still/$', poster.views.still),
-    url(r'^id/', include(lookup.urls)),
-    url(r'^get/', include(lookup.urls)),
+    re_path(r'^$', views.index),
+    re_path(r'api/?', oxdjango.api.urls.urls),
+    path(r'poster/', poster.urls.urls),
+    re_path(r'still/', poster.views.still),
+    path(r'id/', lookup.urls.urls2),
+    path(r'get/', lookup.urls.urls),
 
-    url(r'^robots.txt$', serve_static_file, {
+    path(r'robots.txt', serve_static_file, {
             'location': os.path.join(settings.STATIC_ROOT, 'robots.txt'),
             'content_type': 'text/plain'
     }),
-    url(r'^favicon.ico$', serve_static_file, {
+    path(r'favicon.ico', serve_static_file, {
             'location': os.path.join(settings.STATIC_ROOT, 'favicon.ico'),
             'content_type': 'image/x-icon'}),
-    url(r'^admin/', include(admin.site.urls)),
+    path(r'admin/', admin.site.urls),
 ]
 
 if settings.DEBUG:
     urlpatterns += [
-        url(r'^media/(?P<path>.*)$', django.views.static.serve,
+        re_path(r'^media/(?P<path>.*)$', django.views.static.serve,
             {'document_root': settings.MEDIA_ROOT}),
-        url(r'^static/(?P<path>.*)$', django.views.static.serve,
+        re_path(r'^static/(?P<path>.*)$', django.views.static.serve,
             {'document_root': settings.STATIC_ROOT}),
     ]
 
diff --git a/requirements.txt b/requirements.txt
index 8c439b2..c561a10 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
-Django<2
-celery==3.1.23
-django-celery==3.1.17
-django-extensions==1.7.4
+Django==4.2.7
+celery==5.3.5
+django-celery-results==2.5.1
+django-extensions==3.2.3
 gunicorn
--e git+http://git.0x2620.org/python-ox.git#egg=python-ox
+ox