diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 139bc9f..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,56 +0,0 @@
-sudo: false
-language: python
-cache: pip
-python:
-  - 2.7
-  - 3.6
-  - 3.7
-  - 3.8
-
-services:
-  - postgresql
-
-install:
-  - pip install tox-travis
-  - pip install coverage codecov
-  - pip install wheel
-
-script:
-  - tox
-
-after_success:
-  - pip install codecov coveralls
-  - codecov --required -n "py${TRAVIS_PYTHON_VERSION}"
-  - "COVERALLS_PARALLEL=true coveralls"
-
-notifications:
-  webhooks: https://coveralls.io/webhook
-
-stages:
-  - test
-  - name: publish
-    if: tag IS present
-
-jobs:
-    fast_finish: true
-    include:
-
-    - stage: test
-      python: 3.8
-
-    - stage: publish
-      python: 3.8
-      install: true
-      script: python setup.py sdist bdist_wheel
-      after_success: true
-      deploy:
-        edge: true
-        provider: releases
-        name: $TRAVIS_TAG
-        target_commitish: $TRAVIS_COMMIT
-        api_key: "$GITHUB_OAUTH_TOKEN"
-        skip_cleanup: true
-        file: dist/*
-        on:
-          branch: master
-          tags: true
diff --git a/README.md b/README.md
index 5bf6d74..e79ecb9 100644
--- a/README.md
+++ b/README.md
@@ -6,27 +6,36 @@ using the native Postgres extension `ltree`.
 Postgresql has already a optimized and very useful tree implementation for data.
 The extension is [ltree](https://www.postgresql.org/docs/9.6/static/ltree.html)
 
-This fork contains a backport to Django 1.11 and Python 3.6.
+This fork contains is a continuation of the work done by [`mariocesar`](https://github.com/mariocesar/) on [`django-ltree`](https://github.com/mariocesar/django-ltree).
 
+<!--
 [![Test](https://github.com/mariocesar/django-ltree/actions/workflows/test.yml/badge.svg)](https://github.com/mariocesar/django-ltree/actions/workflows/test.yml)
-
+ -->
 
 ## Links
 
- - Pypi https://pypi.org/project/django-ltree/
- - Source code https://github.com/mariocesar/django-ltree
- - Bugs https://github.com/mariocesar/django-ltree/issues
- - Contribute https://github.com/mariocesar/django-ltree/pulls
- - Documentation `TODO`
+-   Pypi https://pypi.org/project/django-ltree/
+-   Source code https://github.com/mariocesar/django-ltree
+-   Bugs https://github.com/mariocesar/django-ltree/issues
+-   Contribute https://github.com/mariocesar/django-ltree/pulls
+-   Documentation `TODO`
 
 ## Install
 
-```
+```py
 pip install django-ltree
 ```
 
 Then add `django_ltree` to `INSTALLED_APPS` in your Django project settings.
 
+```python
+INSTALLED_APPS = [
+    ...,
+    'django_ltree',
+    ...
+]
+```
+
 And make sure to run `django_ltree` migrations before you added the `PathField`
 
 ```
@@ -38,7 +47,7 @@ python manage.py migrate django_ltree
 You can alternatively specify the `django_ltree` dependency in the migrations of
 your applications that requires `PathField`, and run migrations smoothly.
 
-```
+```python
 class Migration(migrations.Migration):
     dependencies = [
             ('django_ltree', '__latest__'),
@@ -47,8 +56,8 @@ class Migration(migrations.Migration):
 
 ## Requires
 
-- Django 1.11 or superior
-- Python 2
+-   Django 5.0 or superior
+-   Python 3.10 or higher
 
 ## Testing
 
diff --git a/django_ltree/fields.py b/django_ltree/fields.py
index 2d1abcb..2fce5dd 100644
--- a/django_ltree/fields.py
+++ b/django_ltree/fields.py
@@ -101,4 +101,4 @@ def get_db_prep_value(self, value, connection, prepared=False):
         elif isinstance(value, (list, str)):
             return str(PathValue(value))
 
-        raise ValueError("Unknown value type {}".format(type(value)))
+        raise ValueError(f"Unknown value type {type(value)}")
diff --git a/django_ltree/lookups.py b/django_ltree/lookups.py
index 1b6615c..5f88a38 100644
--- a/django_ltree/lookups.py
+++ b/django_ltree/lookups.py
@@ -9,7 +9,7 @@ class SimpleLookup(Lookup):
     def as_sql(self, compiler, connection):
         lhs, lhs_params = self.process_lhs(compiler, connection)
         rhs, rhs_params = self.process_rhs(compiler, connection)
-        return "{} {} {}".format(lhs, self.lookup_operator, rhs), [
+        return f"{lhs} {self.lookup_operator} {rhs}", [
             *lhs_params,
             *rhs_params,
         ]
@@ -22,7 +22,7 @@ class EqualLookup(Lookup):
     def as_sql(self, compiler, connection):
         lhs, lhs_params = self.process_lhs(compiler, connection)
         rhs, rhs_params = self.process_rhs(compiler, connection)
-        return "{} = {}".format(lhs, rhs), [*lhs_params, *rhs_params]
+        return f"{lhs} = {rhs}", [*lhs_params, *rhs_params]
 
 
 @PathField.register_lookup
diff --git a/django_ltree/migrations/0001_create_extension.py b/django_ltree/migrations/0001_create_extension.py
index f74f43d..11faae1 100644
--- a/django_ltree/migrations/0001_create_extension.py
+++ b/django_ltree/migrations/0001_create_extension.py
@@ -4,12 +4,10 @@
 class Migration(migrations.Migration):
     initial = True
 
-    dependencies = [
-    ]
+    dependencies = []
 
     operations = [
         migrations.RunSQL(
-            "CREATE EXTENSION IF NOT EXISTS ltree;",
-            "DROP EXTENSION ltree;"
+            "CREATE EXTENSION IF NOT EXISTS ltree;", "DROP EXTENSION ltree;"
         )
     ]
diff --git a/django_ltree/models.py b/django_ltree/models.py
index f36b657..64863cd 100644
--- a/django_ltree/models.py
+++ b/django_ltree/models.py
@@ -1,4 +1,5 @@
 from django.db import models
+from typing import Any
 
 from .fields import PathField, PathValue
 from .managers import TreeManager
@@ -15,12 +16,8 @@ class Meta:
     def label(self):
         return self.path[-1]
 
-    def get_ancestors_paths(self):  # type: () -> List[List[str]]
-        return [
-            PathValue(self.path[:n])
-            for n, p in enumerate(self.path)
-            if n > 0
-        ]
+    def get_ancestors_paths(self) -> list[list[str]]:
+        return [PathValue(self.path[:n]) for n, p in enumerate(self.path) if n > 0]
 
     def ancestors(self):
         return type(self)._default_manager.filter(path__ancestors=self.path)
@@ -44,7 +41,7 @@ def siblings(self):
             .exclude(path=self.path)
         )
 
-    def add_child(self, slug, **kwargs):  # type:(str) -> Any
+    def add_child(self, slug: str, **kwargs) -> Any:
         assert "path" not in kwargs
         kwargs["path"] = self.path[:]
         kwargs["path"].append(slug)
diff --git a/poetry.lock b/poetry.lock
index 8c4d286..c34b454 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -17,6 +17,28 @@ typing-extensions = {version = ">=4", markers = "python_version < \"3.11\""}
 [package.extras]
 tests = ["mypy (>=0.800)", "pytest", "pytest-asyncio"]
 
+[[package]]
+name = "cachetools"
+version = "5.3.2"
+description = "Extensible memoizing collections and decorators"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "cachetools-5.3.2-py3-none-any.whl", hash = "sha256:861f35a13a451f94e301ce2bec7cac63e881232ccce7ed67fab9b5df4d3beaa1"},
+    {file = "cachetools-5.3.2.tar.gz", hash = "sha256:086ee420196f7b2ab9ca2db2520aca326318b68fe5ba8bc4d49cca91add450f2"},
+]
+
+[[package]]
+name = "chardet"
+version = "5.2.0"
+description = "Universal encoding detector for Python 3"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "chardet-5.2.0-py3-none-any.whl", hash = "sha256:e1cf59446890a00105fe7b7912492ea04b6e6f06d4b742b2c788469e34c82970"},
+    {file = "chardet-5.2.0.tar.gz", hash = "sha256:1b3b6ff479a8c414bc3fa2c0852995695c4a026dcd6d0633b2dd092ca39c1cf7"},
+]
+
 [[package]]
 name = "colorama"
 version = "0.4.6"
@@ -28,6 +50,17 @@ files = [
     {file = "colorama-0.4.6.tar.gz", hash = "sha256:08695f5cb7ed6e0531a20572697297273c47b8cae5a63ffc6d6ed5c201be6e44"},
 ]
 
+[[package]]
+name = "distlib"
+version = "0.3.8"
+description = "Distribution utilities"
+optional = false
+python-versions = "*"
+files = [
+    {file = "distlib-0.3.8-py2.py3-none-any.whl", hash = "sha256:034db59a0b96f8ca18035f36290806a9a6e6bd9d1ff91e45a7f172eb17e51784"},
+    {file = "distlib-0.3.8.tar.gz", hash = "sha256:1530ea13e350031b6312d8580ddb6b27a104275a31106523b8f123787f494f64"},
+]
+
 [[package]]
 name = "django"
 version = "5.0.2"
@@ -62,6 +95,22 @@ files = [
 [package.extras]
 test = ["pytest (>=6)"]
 
+[[package]]
+name = "filelock"
+version = "3.13.1"
+description = "A platform independent file lock."
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "filelock-3.13.1-py3-none-any.whl", hash = "sha256:57dbda9b35157b05fb3e58ee91448612eb674172fab98ee235ccb0b5bee19a1c"},
+    {file = "filelock-3.13.1.tar.gz", hash = "sha256:521f5f56c50f8426f5e03ad3b281b490a87ef15bc6c526f168290f0c7148d44e"},
+]
+
+[package.extras]
+docs = ["furo (>=2023.9.10)", "sphinx (>=7.2.6)", "sphinx-autodoc-typehints (>=1.24)"]
+testing = ["covdefaults (>=2.3)", "coverage (>=7.3.2)", "diff-cover (>=8)", "pytest (>=7.4.3)", "pytest-cov (>=4.1)", "pytest-mock (>=3.12)", "pytest-timeout (>=2.2)"]
+typing = ["typing-extensions (>=4.8)"]
+
 [[package]]
 name = "iniconfig"
 version = "2.0.0"
@@ -84,6 +133,21 @@ files = [
     {file = "packaging-23.2.tar.gz", hash = "sha256:048fb0e9405036518eaaf48a55953c750c11e1a1b68e0dd1a9d62ed0c092cfc5"},
 ]
 
+[[package]]
+name = "platformdirs"
+version = "4.2.0"
+description = "A small Python package for determining appropriate platform-specific dirs, e.g. a \"user data dir\"."
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "platformdirs-4.2.0-py3-none-any.whl", hash = "sha256:0614df2a2f37e1a662acbd8e2b25b92ccf8632929bc6d43467e17fe89c75e068"},
+    {file = "platformdirs-4.2.0.tar.gz", hash = "sha256:ef0cc731df711022c174543cb70a9b5bd22e5a9337c8624ef2c2ceb8ddad8768"},
+]
+
+[package.extras]
+docs = ["furo (>=2023.9.10)", "proselint (>=0.13)", "sphinx (>=7.2.6)", "sphinx-autodoc-typehints (>=1.25.2)"]
+test = ["appdirs (==1.4.4)", "covdefaults (>=2.3)", "pytest (>=7.4.3)", "pytest-cov (>=4.1)", "pytest-mock (>=3.12)"]
+
 [[package]]
 name = "pluggy"
 version = "1.4.0"
@@ -99,6 +163,25 @@ files = [
 dev = ["pre-commit", "tox"]
 testing = ["pytest", "pytest-benchmark"]
 
+[[package]]
+name = "pyproject-api"
+version = "1.6.1"
+description = "API to interact with the python pyproject.toml based projects"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "pyproject_api-1.6.1-py3-none-any.whl", hash = "sha256:4c0116d60476b0786c88692cf4e325a9814965e2469c5998b830bba16b183675"},
+    {file = "pyproject_api-1.6.1.tar.gz", hash = "sha256:1817dc018adc0d1ff9ca1ed8c60e1623d5aaca40814b953af14a9cf9a5cae538"},
+]
+
+[package.dependencies]
+packaging = ">=23.1"
+tomli = {version = ">=2.0.1", markers = "python_version < \"3.11\""}
+
+[package.extras]
+docs = ["furo (>=2023.8.19)", "sphinx (<7.2)", "sphinx-autodoc-typehints (>=1.24)"]
+testing = ["covdefaults (>=2.3)", "pytest (>=7.4)", "pytest-cov (>=4.1)", "pytest-mock (>=3.11.1)", "setuptools (>=68.1.2)", "wheel (>=0.41.2)"]
+
 [[package]]
 name = "pytest"
 version = "8.0.1"
@@ -148,6 +231,33 @@ files = [
     {file = "tomli-2.0.1.tar.gz", hash = "sha256:de526c12914f0c550d15924c62d72abc48d6fe7364aa87328337a31007fe8a4f"},
 ]
 
+[[package]]
+name = "tox"
+version = "4.13.0"
+description = "tox is a generic virtualenv management and test command line tool"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "tox-4.13.0-py3-none-any.whl", hash = "sha256:1143c7e2489c68026a55d3d4ae84c02c449f073b28e62f80e3e440a3b72a4afa"},
+    {file = "tox-4.13.0.tar.gz", hash = "sha256:dd789a554c16c4b532924ba393c92fc8991323c4b3d466712bfecc8c9b9f24f7"},
+]
+
+[package.dependencies]
+cachetools = ">=5.3.2"
+chardet = ">=5.2"
+colorama = ">=0.4.6"
+filelock = ">=3.13.1"
+packaging = ">=23.2"
+platformdirs = ">=4.1"
+pluggy = ">=1.3"
+pyproject-api = ">=1.6.1"
+tomli = {version = ">=2.0.1", markers = "python_version < \"3.11\""}
+virtualenv = ">=20.25"
+
+[package.extras]
+docs = ["furo (>=2023.9.10)", "sphinx (>=7.2.6)", "sphinx-argparse-cli (>=1.11.1)", "sphinx-autodoc-typehints (>=1.25.2)", "sphinx-copybutton (>=0.5.2)", "sphinx-inline-tabs (>=2023.4.21)", "sphinxcontrib-towncrier (>=0.2.1a0)", "towncrier (>=23.11)"]
+testing = ["build[virtualenv] (>=1.0.3)", "covdefaults (>=2.3)", "detect-test-pollution (>=1.2)", "devpi-process (>=1)", "diff-cover (>=8.0.2)", "distlib (>=0.3.8)", "flaky (>=3.7)", "hatch-vcs (>=0.4)", "hatchling (>=1.21)", "psutil (>=5.9.7)", "pytest (>=7.4.4)", "pytest-cov (>=4.1)", "pytest-mock (>=3.12)", "pytest-xdist (>=3.5)", "re-assert (>=1.1)", "time-machine (>=2.13)", "wheel (>=0.42)"]
+
 [[package]]
 name = "typing-extensions"
 version = "4.9.0"
@@ -170,7 +280,27 @@ files = [
     {file = "tzdata-2024.1.tar.gz", hash = "sha256:2674120f8d891909751c38abcdfd386ac0a5a1127954fbc332af6b5ceae07efd"},
 ]
 
+[[package]]
+name = "virtualenv"
+version = "20.25.1"
+description = "Virtual Python Environment builder"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "virtualenv-20.25.1-py3-none-any.whl", hash = "sha256:961c026ac520bac5f69acb8ea063e8a4f071bcc9457b9c1f28f6b085c511583a"},
+    {file = "virtualenv-20.25.1.tar.gz", hash = "sha256:e08e13ecdca7a0bd53798f356d5831434afa5b07b93f0abdf0797b7a06ffe197"},
+]
+
+[package.dependencies]
+distlib = ">=0.3.7,<1"
+filelock = ">=3.12.2,<4"
+platformdirs = ">=3.9.1,<5"
+
+[package.extras]
+docs = ["furo (>=2023.7.26)", "proselint (>=0.13)", "sphinx (>=7.1.2)", "sphinx-argparse (>=0.4)", "sphinxcontrib-towncrier (>=0.2.1a0)", "towncrier (>=23.6)"]
+test = ["covdefaults (>=2.3)", "coverage (>=7.2.7)", "coverage-enable-subprocess (>=1)", "flaky (>=3.7)", "packaging (>=23.1)", "pytest (>=7.4)", "pytest-env (>=0.8.2)", "pytest-freezer (>=0.4.8)", "pytest-mock (>=3.11.1)", "pytest-randomly (>=3.12)", "pytest-timeout (>=2.1)", "setuptools (>=68)", "time-machine (>=2.10)"]
+
 [metadata]
 lock-version = "2.0"
 python-versions = ">=3.10"
-content-hash = "4de55f0cce52d83174d3a3ce175e4ef75a39a3a6e498244a69afc5d8d56193a3"
+content-hash = "1ea1547b12868f41457204df394114cea4d5cac94cb7d70a70b6fe37735ece83"
diff --git a/pyproject.toml b/pyproject.toml
index a7120dc..5cbd55f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -27,6 +27,7 @@ django = ">=5.0.2"
 
 [tool.poetry.group.dev.dependencies]
 pytest = "^8.0.1"
+tox = "^4.13.0"
 
 [build-system]
 requires = ["poetry-core"]
diff --git a/python-versions.txt b/python-versions.txt
deleted file mode 100644
index 77fc210..0000000
--- a/python-versions.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-3.8.0
-3.7.5
-3.6.9
-2.7.14
diff --git a/setup.cfg b/setup.cfg
deleted file mode 100644
index 9a0d28e..0000000
--- a/setup.cfg
+++ /dev/null
@@ -1,12 +0,0 @@
-[wheel]
-universal = 1
-
-[coverage:run]
-branch = True
-parallel = True
-
-[coverage:paths]
-source = django_ltree
-
-[tool:pytest]
-testpaths = tests