diff --git a/pkgs/by-name/pr/pretalx/package.nix b/pkgs/by-name/pr/pretalx/package.nix
index 372d86d44415..7098f3975c29 100644
--- a/pkgs/by-name/pr/pretalx/package.nix
+++ b/pkgs/by-name/pr/pretalx/package.nix
@@ -95,6 +95,7 @@ python.pkgs.buildPythonApplication rec {
     "django-csp"
     "django-filter"
     "django-formset-js-improved"
+    "django-formtools"
     "django-i18nfield"
     "djangorestframework"
     "markdown"
diff --git a/pkgs/by-name/pr/pretix/package.nix b/pkgs/by-name/pr/pretix/package.nix
index 9cd89e0d4528..e7146d5fe3f1 100644
--- a/pkgs/by-name/pr/pretix/package.nix
+++ b/pkgs/by-name/pr/pretix/package.nix
@@ -99,6 +99,7 @@ python.pkgs.buildPythonApplication rec {
     "django-compressor"
     "django-filter"
     "django-formset-js-improved"
+    "django-formtools"
     "django-i18nfield"
     "django-localflavor"
     "django-phonenumber-field"
diff --git a/pkgs/development/python-modules/django-formtools/default.nix b/pkgs/development/python-modules/django-formtools/default.nix
index 5ece57bbcf67..c4b1afd38033 100644
--- a/pkgs/development/python-modules/django-formtools/default.nix
+++ b/pkgs/development/python-modules/django-formtools/default.nix
@@ -2,41 +2,56 @@
   lib,
   buildPythonPackage,
   django,
-  fetchPypi,
-  python,
+  fetchFromGitHub,
+  setuptools,
   setuptools-scm,
+  pytestCheckHook,
+  pytest-django,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "django-formtools";
-  version = "2.5.1";
+  version = "2.6.1";
   pyproject = true;
 
-  src = fetchPypi {
-    inherit pname version;
-    hash = "sha256-R8s0VSxu/KCIhj1pMoTQT8NuqvNQ6yHhodk14N9SPJM=";
+  src = fetchFromGitHub {
+    owner = "jazzband";
+    repo = "django-formtools";
+    tag = finalAttrs.version;
+    hash = "sha256-cg6bl2KJL2aOES7vWqrR25Bd6t9vWGTZLWtbMUhkCkg=";
   };
 
-  nativeBuildInputs = [ setuptools-scm ];
+  build-system = [
+    setuptools
+    setuptools-scm
+  ];
 
-  propagatedBuildInputs = [ django ];
+  dependencies = [ django ];
 
-  checkPhase = ''
-    runHook preCheck
+  nativeCheckInputs = [
+    pytestCheckHook
+    pytest-django
+  ];
 
-    ${python.interpreter} -m django test --settings=tests.settings
-
-    runHook postCheck
+  preCheck = ''
+    export DJANGO_SETTINGS_MODULE=tests.settings
   '';
 
+  disabledTests = [
+    # mismatch between test collection of django and pytest-django
+    "TestStorage"
+    # Django 6.0.6/5.2.15 compat issue
+    # https://github.com/jazzband/django-formtools/issues/298
+    "test_reset_cookie"
+  ];
+
   pythonImportsCheck = [ "formtools" ];
 
   meta = {
-    description = "Set of high-level abstractions for Django forms";
+    description = "High-level abstractions for Django forms";
     homepage = "https://github.com/jazzband/django-formtools";
-    changelog = "https://github.com/jazzband/django-formtools/blob/master/docs/changelog.rst";
+    changelog = "https://github.com/jazzband/django-formtools/blob/${finalAttrs.src.tag}/docs/changelog.rst";
     license = lib.licenses.bsd3;
-    maintainers = [
-    ];
+    maintainers = [ ];
   };
-}
+})
diff --git a/pkgs/development/python-modules/django/6.nix b/pkgs/development/python-modules/django/6.nix
index 38c746fb5718..4b6e54569b85 100644
--- a/pkgs/development/python-modules/django/6.nix
+++ b/pkgs/development/python-modules/django/6.nix
@@ -42,7 +42,7 @@
 
 buildPythonPackage (finalAttrs: {
   pname = "django";
-  version = "6.0.5";
+  version = "6.0.6";
   pyproject = true;
 
   disabled = pythonOlder "3.12";
@@ -51,7 +51,7 @@ buildPythonPackage (finalAttrs: {
     owner = "django";
     repo = "django";
     tag = finalAttrs.version;
-    hash = "sha256-jII/aoJ75sS+ig4iVZmTcsEE76aC8Om/k2J+LnRj+cE=";
+    hash = "sha256-hLnTqY64PfaGJ1JJccrxYms41Jp4E4pVq6rmrtFpESE=";
   };
 
   patches = [
@@ -62,6 +62,9 @@ buildPythonPackage (finalAttrs: {
     ./6.x/pythonpath.patch
     # test_incorrect_timezone should raise but doesn't
     ./6.x/disable-failing-test.patch
+    # https://code.djangoproject.com/ticket/36997
+    # https://github.com/django/django/pull/21019
+    ./6.x/invalidate-importlib-cache.patch
   ]
   ++ lib.optionals withGdal [
     (replaceVars ./6.x/gdal.patch {
diff --git a/pkgs/development/python-modules/django/6.x/invalidate-importlib-cache.patch b/pkgs/development/python-modules/django/6.x/invalidate-importlib-cache.patch
new file mode 100644
index 000000000000..910b6477cd32
--- /dev/null
+++ b/pkgs/development/python-modules/django/6.x/invalidate-importlib-cache.patch
@@ -0,0 +1,54 @@
+From 130ccbf51a5ad4810dcef46584661a818b7964d3 Mon Sep 17 00:00:00 2001
+From: gghezext <gghezext@comgest.com>
+Date: Sun, 29 Mar 2026 03:46:48 +0200
+Subject: [PATCH 1/2] Fixed #36997 -- Invalidated importlib caches after
+ writing migration files.
+
+---
+ django/core/management/commands/makemigrations.py   | 3 +++
+ django/core/management/commands/squashmigrations.py | 2 ++
+ docs/releases/6.1.txt                               | 5 ++++-
+ 3 files changed, 9 insertions(+), 1 deletion(-)
+
+diff --git a/django/core/management/commands/makemigrations.py b/django/core/management/commands/makemigrations.py
+index 7f711ed7aec4..355d626ce2c4 100644
+--- a/django/core/management/commands/makemigrations.py
++++ b/django/core/management/commands/makemigrations.py
+@@ -1,3 +1,4 @@
++import importlib
+ import os
+ import sys
+ import warnings
+@@ -395,6 +396,7 @@ def write_migration_files(self, changes, update_previous_migration_paths=None):
+                     )
+                     self.log(writer.as_string())
+         run_formatters(self.written_files, stderr=self.stderr)
++        importlib.invalidate_caches()
+ 
+     @staticmethod
+     def get_relative_path(path):
+@@ -502,6 +504,7 @@ def all_items_equal(seq):
+                     with open(writer.path, "w", encoding="utf-8") as fh:
+                         fh.write(writer.as_string())
+                     run_formatters([writer.path], stderr=self.stderr)
++                    importlib.invalidate_caches()
+                     if self.verbosity > 0:
+                         self.log("\nCreated new merge migration %s" % writer.path)
+                         if self.scriptable:
+diff --git a/django/core/management/commands/squashmigrations.py b/django/core/management/commands/squashmigrations.py
+index 9845b4d4567b..abc87717b66b 100644
+--- a/django/core/management/commands/squashmigrations.py
++++ b/django/core/management/commands/squashmigrations.py
+@@ -1,3 +1,4 @@
++import importlib
+ import os
+ import shutil
+ 
+@@ -208,6 +209,7 @@ def handle(self, **options):
+         with open(writer.path, "w", encoding="utf-8") as fh:
+             fh.write(writer.as_string())
+         run_formatters([writer.path], stderr=self.stderr)
++        importlib.invalidate_caches()
+ 
+         if self.verbosity > 0:
+             self.stdout.write(