diff --git a/swh/loader/svn/tasks.py b/swh/loader/svn/tasks.py
index b369d86..f65b801 100644
--- a/swh/loader/svn/tasks.py
+++ b/swh/loader/svn/tasks.py
@@ -1,77 +1,77 @@
 # Copyright (C) 2015-2019  The Software Heritage developers
 # See the AUTHORS file at the top-level directory of this distribution
 # License: GNU General Public License version 3, or any later version
 # See top-level LICENSE file for more information
 
 from celery import shared_task
 
 from .loader import (
     SvnLoader, SvnLoaderFromDumpArchive, SvnLoaderFromRemoteDump
 )
 
 
 @shared_task(name=__name__ + '.LoadSvnRepository')
-def load_svn(url=None,
+def load_svn(*, url=None,
              origin_url=None,
              destination_path=None,
              swh_revision=None,
              visit_date=None,
              start_from_scratch=False):
     """Import a svn repository
 
     Args:
         args: ordered arguments (expected None)
         kwargs: Dictionary with the following expected keys:
 
           - url (str): (mandatory) svn's repository url
           - origin_url (str): Optional original url override
           - destination_path (str): (optional) root directory to
             locally retrieve svn's data
           - swh_revision (dict): (optional) extra revision hex to
             start from.  see swh.loader.svn.SvnLoader.process
             docstring
 
     """
     loader = SvnLoader(url,
                        origin_url=origin_url,
                        destination_path=destination_path,
                        swh_revision=swh_revision,
                        visit_date=visit_date,
                        start_from_scratch=start_from_scratch)
     return loader.load()
 
 
 @shared_task(name=__name__ + '.MountAndLoadSvnRepository')
-def load_svn_from_archive(url=None,
+def load_svn_from_archive(*, url=None,
                           archive_path=None,
                           visit_date=None,
                           start_from_scratch=False):
     """1. Mount an svn dump from archive as a local svn repository
        2. Load it through the svn loader
        3. Clean up mounted svn repository archive
 
     """
     loader = SvnLoaderFromDumpArchive(
         url,
         archive_path=archive_path,
         visit_date=visit_date,
         start_from_scratch=start_from_scratch)
     return loader.load()
 
 
 @shared_task(name=__name__ + '.DumpMountAndLoadSvnRepository')
-def load_svn_from_remote_dump(url=None,
+def load_svn_from_remote_dump(*, url=None,
                               origin_url=None,
                               visit_date=None,
                               start_from_scratch=False):
     """1. Mount a remote svn dump as a local svn repository.
        2. Load it through the svn loader.
        3. Clean up mounted svn repository archive.
 
     """
     loader = SvnLoaderFromRemoteDump(
         url,
         origin_url=origin_url,
         visit_date=visit_date,
         start_from_scratch=start_from_scratch)
     return loader.load()
diff --git a/swh/loader/svn/tests/test_task.py b/swh/loader/svn/tests/test_task.py
index c2430f9..7579ef9 100644
--- a/swh/loader/svn/tests/test_task.py
+++ b/swh/loader/svn/tests/test_task.py
@@ -1,50 +1,50 @@
 # Copyright (C) 2019  The Software Heritage developers
 # See the AUTHORS file at the top-level directory of this distribution
 # License: GNU General Public License version 3, or any later version
 # See top-level LICENSE file for more information
 
 
 def test_svn_loader(mocker, swh_app, celery_session_worker, swh_config):
     mock_loader = mocker.patch('swh.loader.svn.loader.SvnLoader.load')
     mock_loader.return_value = {'status': 'eventful'}
 
     res = swh_app.send_task(
         'swh.loader.svn.tasks.LoadSvnRepository',
-        (), dict(url='some-technical-url', origin_url='origin-url'))
+        kwargs=dict(url='some-technical-url', origin_url='origin-url'))
     assert res
     res.wait()
     assert res.successful()
 
     assert res.result == {'status': 'eventful'}
 
 
 def test_svn_loader_from_dump(
         mocker, swh_app, celery_session_worker, swh_config):
     mock_loader = mocker.patch(
         'swh.loader.svn.loader.SvnLoaderFromDumpArchive.load')
     mock_loader.return_value = {'status': 'eventful'}
 
     res = swh_app.send_task(
         'swh.loader.svn.tasks.MountAndLoadSvnRepository',
-        (), dict(url='some-url', archive_path='some-path'))
+        kwargs=dict(url='some-url', archive_path='some-path'))
     assert res
     res.wait()
     assert res.successful()
 
     assert res.result == {'status': 'eventful'}
 
 
 def test_svn_loader_from_remote_dump(
         mocker, swh_app, celery_session_worker, swh_config):
     mock_loader = mocker.patch(
         'swh.loader.svn.loader.SvnLoaderFromRemoteDump.load')
     mock_loader.return_value = {'status': 'eventful'}
 
     res = swh_app.send_task(
         'swh.loader.svn.tasks.DumpMountAndLoadSvnRepository',
-        (), dict(url='some-remote-dump-url', origin_url='origin-url'))
+        kwargs=dict(url='some-remote-dump-url', origin_url='origin-url'))
     assert res
     res.wait()
     assert res.successful()
 
     assert res.result == {'status': 'eventful'}