diff -pruN 4.5.1+dfsg-2/debian/changelog 4.5.1+dfsg-3/debian/changelog
--- 4.5.1+dfsg-2/debian/changelog	2022-01-14 14:22:05.000000000 +0000
+++ 4.5.1+dfsg-3/debian/changelog	2022-07-31 16:38:20.000000000 +0000
@@ -1,3 +1,11 @@
+python-django-treebeard (4.5.1+dfsg-3) unstable; urgency=medium
+
+  * Add patch for Django 4 compatibility (Closes: #1013521).
+  * Bump Standards-Version to 4.6.1.0.
+  * Update lintian-overrides.
+
+ -- Michael Fladischer <fladi@debian.org>  Sun, 31 Jul 2022 16:38:20 +0000
+
 python-django-treebeard (4.5.1+dfsg-2) unstable; urgency=low
 
   * Remove unnecessary autopkgtest-pkg-python testsuite.
diff -pruN 4.5.1+dfsg-2/debian/control 4.5.1+dfsg-3/debian/control
--- 4.5.1+dfsg-2/debian/control	2022-01-14 14:22:05.000000000 +0000
+++ 4.5.1+dfsg-3/debian/control	2022-07-31 16:38:20.000000000 +0000
@@ -16,7 +16,7 @@ Build-Depends-Indep:
  python3-pytest-django,
  python3-setuptools,
  python3-sphinx,
-Standards-Version: 4.6.0
+Standards-Version: 4.6.1.0
 Vcs-Browser: https://salsa.debian.org/python-team/packages/python-django-treebeard
 Vcs-Git: https://salsa.debian.org/python-team/packages/python-django-treebeard.git
 Homepage: https://github.com/django-treebeard/django-treebeard
diff -pruN 4.5.1+dfsg-2/debian/patches/0004-Django-4-compatibility.patch 4.5.1+dfsg-3/debian/patches/0004-Django-4-compatibility.patch
--- 4.5.1+dfsg-2/debian/patches/0004-Django-4-compatibility.patch	1970-01-01 00:00:00.000000000 +0000
+++ 4.5.1+dfsg-3/debian/patches/0004-Django-4-compatibility.patch	2022-07-31 16:38:20.000000000 +0000
@@ -0,0 +1,76 @@
+From: Michael Fladischer <fladi@debian.org>
+Date: Sun, 31 Jul 2022 16:04:56 +0000
+Subject: Django 4 compatibility.
+
+---
+ treebeard/tests/test_treebeard.py | 8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+diff --git a/treebeard/tests/test_treebeard.py b/treebeard/tests/test_treebeard.py
+index dd8060d..ed90d3a 100644
+--- a/treebeard/tests/test_treebeard.py
++++ b/treebeard/tests/test_treebeard.py
+@@ -2617,6 +2617,7 @@ class TestAdminTree(TestNonEmptyTree):
+             m.list_editable,
+             m,
+             None,
++            None,
+         )
+         cl.formset = None
+         context = Context({"cl": cl, "request": request})
+@@ -2666,6 +2667,7 @@ class TestAdminTree(TestNonEmptyTree):
+             m.list_editable,
+             m,
+             None,
++            None,
+         )
+         cl.formset = None
+         context = Context({"cl": cl, "request": request})
+@@ -2707,6 +2709,7 @@ class TestAdminTree(TestNonEmptyTree):
+             m.list_editable,
+             m,
+             None,
++            None,
+         )
+         cl.formset = None
+         context = Context({"cl": cl, "request": request})
+@@ -2733,6 +2736,7 @@ class TestAdminTree(TestNonEmptyTree):
+             m.list_editable,
+             m,
+             None,
++            None,
+         )
+         cl.formset = None
+         context = Context({"cl": cl, "request": request})
+@@ -2759,6 +2763,7 @@ class TestAdminTree(TestNonEmptyTree):
+             m.list_editable,
+             m,
+             None,
++            None,
+         )
+         cl.formset = None
+         context = Context({"cl": cl, "request": request})
+@@ -2802,6 +2807,7 @@ class TestAdminTreeList(TestNonEmptyTree):
+             m.list_editable,
+             m,
+             None,
++            None,
+         )
+         cl.formset = None
+         context = Context({"cl": cl, "request": request})
+@@ -2835,6 +2841,7 @@ class TestAdminTreeList(TestNonEmptyTree):
+             m.list_editable,
+             m,
+             None,
++            None,
+         )
+         cl.formset = None
+         context = Context({"cl": cl, "request": request, "action_form": True})
+@@ -2878,6 +2885,7 @@ class TestAdminTreeList(TestNonEmptyTree):
+             m.list_editable,
+             m,
+             None,
++            None,
+         )
+         cl.formset = None
+         context = Context({"cl": cl, "request": request})
diff -pruN 4.5.1+dfsg-2/debian/patches/series 4.5.1+dfsg-3/debian/patches/series
--- 4.5.1+dfsg-2/debian/patches/series	2022-01-14 14:22:05.000000000 +0000
+++ 4.5.1+dfsg-3/debian/patches/series	2022-07-31 16:38:20.000000000 +0000
@@ -1,3 +1,4 @@
 0001-Remove-version-infromation-from-jquery-ui-filename.patch
 0002-Make-intersphinx-use-local-copies-of-objects.inv-fil.patch
 0003-Remove-djangodocs-extension-from-sphinx-configuratio.patch
+0004-Django-4-compatibility.patch
diff -pruN 4.5.1+dfsg-2/debian/source/lintian-overrides 4.5.1+dfsg-3/debian/source/lintian-overrides
--- 4.5.1+dfsg-2/debian/source/lintian-overrides	2022-01-14 14:22:05.000000000 +0000
+++ 4.5.1+dfsg-3/debian/source/lintian-overrides	2022-07-31 16:38:20.000000000 +0000
@@ -1,6 +1,6 @@
 # False positive as one large object definition has >512 chars in one line.
-python-django-treebeard source: very-long-line-length-in-source-file treebeard/static/treebeard/treebeard-admin.js line 313 is 1080 characters long (>512)
+python-django-treebeard source: very-long-line-length-in-source-file 1081 > 512 [treebeard/static/treebeard/treebeard-admin.js:313]
 # False positive as one large object definition has >512 chars in one line.
-python-django-treebeard source: source-contains-prebuilt-javascript-object treebeard/static/treebeard/treebeard-admin.js
+python-django-treebeard source: source-contains-prebuilt-javascript-object [treebeard/static/treebeard/treebeard-admin.js]
 # False positive as one large object definition has >512 chars in one line.
-python-django-treebeard source: source-is-missing treebeard/static/treebeard/treebeard-admin.js
+python-django-treebeard source: source-is-missing [treebeard/static/treebeard/treebeard-admin.js]