diff --git a/swh/lister/bitbucket/__init__.py b/swh/lister/bitbucket/__init__.py
--- a/swh/lister/bitbucket/__init__.py
+++ b/swh/lister/bitbucket/__init__.py
@@ -7,7 +7,6 @@
     from .lister import BitbucketLister
 
     return {
-        "models": [],
         "lister": BitbucketLister,
         "task_modules": ["%s.tasks" % __name__],
     }
diff --git a/swh/lister/cran/__init__.py b/swh/lister/cran/__init__.py
--- a/swh/lister/cran/__init__.py
+++ b/swh/lister/cran/__init__.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2019 the Software Heritage developers
+# Copyright (C) 2019-2021 the Software Heritage developers
 # License: GNU General Public License version 3, or any later version
 # See top-level LICENSE file for more information
 
@@ -7,7 +7,6 @@
     from .lister import CRANLister
 
     return {
-        "models": [],
         "lister": CRANLister,
         "task_modules": ["%s.tasks" % __name__],
     }
diff --git a/swh/lister/debian/__init__.py b/swh/lister/debian/__init__.py
--- a/swh/lister/debian/__init__.py
+++ b/swh/lister/debian/__init__.py
@@ -10,7 +10,6 @@
     from .lister import DebianLister
 
     return {
-        "models": [],
         "lister": DebianLister,
         "task_modules": ["%s.tasks" % __name__],
     }
diff --git a/swh/lister/gitea/__init__.py b/swh/lister/gitea/__init__.py
--- a/swh/lister/gitea/__init__.py
+++ b/swh/lister/gitea/__init__.py
@@ -7,7 +7,6 @@
     from .lister import GiteaLister
 
     return {
-        "models": [],
         "lister": GiteaLister,
         "task_modules": ["%s.tasks" % __name__],
     }
diff --git a/swh/lister/github/__init__.py b/swh/lister/github/__init__.py
--- a/swh/lister/github/__init__.py
+++ b/swh/lister/github/__init__.py
@@ -7,7 +7,6 @@
     from .lister import GitHubLister
 
     return {
-        "models": [],
         "lister": GitHubLister,
         "task_modules": ["%s.tasks" % __name__],
     }
diff --git a/swh/lister/npm/__init__.py b/swh/lister/npm/__init__.py
--- a/swh/lister/npm/__init__.py
+++ b/swh/lister/npm/__init__.py
@@ -7,7 +7,6 @@
     from .lister import NpmLister
 
     return {
-        "models": [],
         "lister": NpmLister,
         "task_modules": ["%s.tasks" % __name__],
         "task_types": {
diff --git a/swh/lister/phabricator/__init__.py b/swh/lister/phabricator/__init__.py
--- a/swh/lister/phabricator/__init__.py
+++ b/swh/lister/phabricator/__init__.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2019 the Software Heritage developers
+# Copyright (C) 2019-2021 the Software Heritage developers
 # License: GNU General Public License version 3, or any later version
 # See top-level LICENSE file for more information
 
@@ -7,7 +7,6 @@
     from .lister import PhabricatorLister
 
     return {
-        "models": [],
         "lister": PhabricatorLister,
         "task_modules": ["%s.tasks" % __name__],
     }
diff --git a/swh/lister/pypi/__init__.py b/swh/lister/pypi/__init__.py
--- a/swh/lister/pypi/__init__.py
+++ b/swh/lister/pypi/__init__.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2019 the Software Heritage developers
+# Copyright (C) 2019-2021 the Software Heritage developers
 # License: GNU General Public License version 3, or any later version
 # See top-level LICENSE file for more information
 
@@ -7,7 +7,6 @@
     from .lister import PyPILister
 
     return {
-        "models": [],
         "lister": PyPILister,
         "task_modules": ["%s.tasks" % __name__],
     }