diff --git a/README.rst b/README.rst
index c196e19..cb6ba51 100644
--- a/README.rst
+++ b/README.rst
@@ -10,7 +10,7 @@ Install dependencies
 
 .. code-block::
 
-   poetry install --with=dev
+   pipenv install --dev
 
 Run tests
 =========
@@ -19,4 +19,5 @@ To run the unit tests and report test coverage use:
 
 .. code-block::
 
-   poetry run tox
+   pipenv run coverage run --branch setup.py test
+   pipenv run coverage report -m
diff --git a/gvacommon/__init__.py b/gvacommon/__init__.py
index f2768d3..aa2947c 100644
--- a/gvacommon/__init__.py
+++ b/gvacommon/__init__.py
@@ -1,6 +1,6 @@
 #
 # gvacommon - common parts of gnuviechadmin
-# Copyright (C) 2015-2023  Jan Dittberner
+# Copyright (C) 2015-2020  Jan Dittberner
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
@@ -15,4 +15,4 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
-__version__ = "0.7.0"
+__version__ = '0.5.0'
diff --git a/poetry.lock b/poetry.lock
index 7a81972..206b567 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,334 +1,125 @@
-# This file is automatically @generated by Poetry 1.5.1 and should not be changed by hand.
+# This file is automatically @generated by Poetry and should not be changed by hand.
 
 [[package]]
 name = "asgiref"
-version = "3.7.2"
+version = "3.6.0"
 description = "ASGI specs, helper code, and adapters"
+category = "main"
 optional = false
 python-versions = ">=3.7"
 files = [
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-    {file = "asgiref-3.7.2.tar.gz", hash = "sha256:9e0ce3aa93a819ba5b45120216b23878cf6e8525eb3848653452b4192b92afed"},
+    {file = "asgiref-3.6.0-py3-none-any.whl", hash = "sha256:71e68008da809b957b7ee4b43dbccff33d1b23519fb8344e33f049897077afac"},
+    {file = "asgiref-3.6.0.tar.gz", hash = "sha256:9567dfe7bd8d3c8c892227827c41cce860b368104c3431da67a0c5a65a949506"},
 ]
 
 [package.dependencies]
-typing-extensions = {version = ">=4", markers = "python_version < \"3.11\""}
+typing-extensions = {version = "*", markers = "python_version < \"3.8\""}
 
 [package.extras]
 tests = ["mypy (>=0.800)", "pytest", "pytest-asyncio"]
 
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-[package.extras]
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 [[package]]
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-python-versions = ">=3.7"
-files = [
-    {file = "pytest-7.4.0-py3-none-any.whl", hash = "sha256:78bf16451a2eb8c7a2ea98e32dc119fd2aa758f1d5d66dbf0a59d69a3969df32"},
-    {file = "pytest-7.4.0.tar.gz", hash = "sha256:b4bf8c45bd59934ed84001ad51e11b4ee40d40a1229d2c79f9c592b0a3f6bd8a"},
-]
-
-[package.dependencies]
-colorama = {version = "*", markers = "sys_platform == \"win32\""}
-exceptiongroup = {version = ">=1.0.0rc8", markers = "python_version < \"3.11\""}
-iniconfig = "*"
-packaging = "*"
-pluggy = ">=0.12,<2.0"
-tomli = {version = ">=1.0.0", markers = "python_version < \"3.11\""}
-
-[package.extras]
-testing = ["argcomplete", "attrs (>=19.2.0)", "hypothesis (>=3.56)", "mock", "nose", "pygments (>=2.7.2)", "requests", "setuptools", "xmlschema"]
-
-[[package]]
-name = "pytest-cov"
-version = "4.1.0"
-description = "Pytest plugin for measuring coverage."
-optional = false
-python-versions = ">=3.7"
-files = [
-    {file = "pytest-cov-4.1.0.tar.gz", hash = "sha256:3904b13dfbfec47f003b8e77fd5b589cd11904a21ddf1ab38a64f204d6a10ef6"},
-    {file = "pytest_cov-4.1.0-py3-none-any.whl", hash = "sha256:6ba70b9e97e69fcc3fb45bfeab2d0a138fb65c4d0d6a41ef33983ad114be8c3a"},
-]
-
-[package.dependencies]
-coverage = {version = ">=5.2.1", extras = ["toml"]}
-pytest = ">=4.6"
-
-[package.extras]
-testing = ["fields", "hunter", "process-tests", "pytest-xdist", "six", "virtualenv"]
-
 [[package]]
 name = "sqlparse"
 version = "0.4.4"
 description = "A non-validating SQL parser."
+category = "main"
 optional = false
 python-versions = ">=3.5"
 files = [
@@ -341,87 +132,19 @@ dev = ["build", "flake8"]
 doc = ["sphinx"]
 test = ["pytest", "pytest-cov"]
 
-[[package]]
-name = "tomli"
-version = "2.0.1"
-description = "A lil' TOML parser"
-optional = false
-python-versions = ">=3.7"
-files = [
-    {file = "tomli-2.0.1-py3-none-any.whl", hash = "sha256:939de3e7a6161af0c887ef91b7d41a53e7c5a1ca976325f429cb46ea9bc30ecc"},
-    {file = "tomli-2.0.1.tar.gz", hash = "sha256:de526c12914f0c550d15924c62d72abc48d6fe7364aa87328337a31007fe8a4f"},
-]
-
-[[package]]
-name = "tox"
-version = "4.6.4"
-description = "tox is a generic virtualenv management and test command line tool"
-optional = false
-python-versions = ">=3.7"
-files = [
-    {file = "tox-4.6.4-py3-none-any.whl", hash = "sha256:1b8f8ae08d6a5475cad9d508236c51ea060620126fd7c3c513d0f5c7f29cc776"},
-    {file = "tox-4.6.4.tar.gz", hash = "sha256:5e2ad8845764706170d3dcaac171704513cc8a725655219acb62fe4380bdadda"},
-]
-
-[package.dependencies]
-cachetools = ">=5.3.1"
-chardet = ">=5.1"
-colorama = ">=0.4.6"
-filelock = ">=3.12.2"
-packaging = ">=23.1"
-platformdirs = ">=3.8"
-pluggy = ">=1.2"
-pyproject-api = ">=1.5.2"
-tomli = {version = ">=2.0.1", markers = "python_version < \"3.11\""}
-virtualenv = ">=20.23.1"
-
-[package.extras]
-docs = ["furo (>=2023.5.20)", "sphinx (>=7.0.1)", "sphinx-argparse-cli (>=1.11.1)", "sphinx-autodoc-typehints (>=1.23.3,!=1.23.4)", "sphinx-copybutton (>=0.5.2)", "sphinx-inline-tabs (>=2023.4.21)", "sphinxcontrib-towncrier (>=0.2.1a0)", "towncrier (>=23.6)"]
-testing = ["build[virtualenv] (>=0.10)", "covdefaults (>=2.3)", "detect-test-pollution (>=1.1.1)", "devpi-process (>=0.3.1)", "diff-cover (>=7.6)", "distlib (>=0.3.6)", "flaky (>=3.7)", "hatch-vcs (>=0.3)", "hatchling (>=1.17.1)", "psutil (>=5.9.5)", "pytest (>=7.4)", "pytest-cov (>=4.1)", "pytest-mock (>=3.11.1)", "pytest-xdist (>=3.3.1)", "re-assert (>=1.1)", "time-machine (>=2.10)", "wheel (>=0.40)"]
-
 [[package]]
 name = "typing-extensions"
-version = "4.7.1"
+version = "4.5.0"
 description = "Backported and Experimental Type Hints for Python 3.7+"
+category = "main"
 optional = false
 python-versions = ">=3.7"
 files = [
-    {file = "typing_extensions-4.7.1-py3-none-any.whl", hash = "sha256:440d5dd3af93b060174bf433bccd69b0babc3b15b1a8dca43789fd7f61514b36"},
-    {file = "typing_extensions-4.7.1.tar.gz", hash = "sha256:b75ddc264f0ba5615db7ba217daeb99701ad295353c45f9e95963337ceeeffb2"},
+    {file = "typing_extensions-4.5.0-py3-none-any.whl", hash = "sha256:fb33085c39dd998ac16d1431ebc293a8b3eedd00fd4a32de0ff79002c19511b4"},
+    {file = "typing_extensions-4.5.0.tar.gz", hash = "sha256:5cb5f4a79139d699607b3ef622a1dedafa84e115ab0024e0d9c044a9479ca7cb"},
 ]
 
-[[package]]
-name = "tzdata"
-version = "2023.3"
-description = "Provider of IANA time zone data"
-optional = false
-python-versions = ">=2"
-files = [
-    {file = "tzdata-2023.3-py2.py3-none-any.whl", hash = "sha256:7e65763eef3120314099b6939b5546db7adce1e7d6f2e179e3df563c70511eda"},
-    {file = "tzdata-2023.3.tar.gz", hash = "sha256:11ef1e08e54acb0d4f95bdb1be05da659673de4acbd21bf9c69e94cc5e907a3a"},
-]
-
-[[package]]
-name = "virtualenv"
-version = "20.23.1"
-description = "Virtual Python Environment builder"
-optional = false
-python-versions = ">=3.7"
-files = [
-    {file = "virtualenv-20.23.1-py3-none-any.whl", hash = "sha256:34da10f14fea9be20e0fd7f04aba9732f84e593dac291b757ce42e3368a39419"},
-    {file = "virtualenv-20.23.1.tar.gz", hash = "sha256:8ff19a38c1021c742148edc4f81cb43d7f8c6816d2ede2ab72af5b84c749ade1"},
-]
-
-[package.dependencies]
-distlib = ">=0.3.6,<1"
-filelock = ">=3.12,<4"
-platformdirs = ">=3.5.1,<4"
-
-[package.extras]
-docs = ["furo (>=2023.5.20)", "proselint (>=0.13)", "sphinx (>=7.0.1)", "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 (>=7.3.1)", "pytest-env (>=0.8.1)", "pytest-freezer (>=0.4.6)", "pytest-mock (>=3.10)", "pytest-randomly (>=3.12)", "pytest-timeout (>=2.1)", "setuptools (>=67.8)", "time-machine (>=2.9)"]
-
 [metadata]
 lock-version = "2.0"
-python-versions = "^3.8"
-content-hash = "aec72e26a75f6a72f5d2538c7b7999f973bb2fab8859d678da24f45da2131493"
+python-versions = "^3.7"
+content-hash = "c6ffe0196b1ee98b45c54d1a7bd58b96c99903c3ba5607baf555b7831384f3b1"
diff --git a/pyproject.toml b/pyproject.toml
index 1e44ee9..c4fbe4d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,24 +1,23 @@
 [tool.poetry]
 name = "gvacommon"
-version = "0.7.0"
-description = "common code for gnuviechadmin components"
+version = "0.6.0"
+description = ""
 authors = ["Jan Dittberner <jan@dittberner.info>"]
 license = "AGPL-3+"
 readme = "README.rst"
 
 [tool.poetry.dependencies]
-python = "^3.8"
-django = "<5"
+python = "^3.7"
+django = "<4"
 
 [tool.poetry.group.dev.dependencies]
 coverage = "^7.1.0"
-tox = "^4.6.4"
-pytest-cov = "^4.1.0"
 
 [[tool.poetry.source]]
 name = "gnuviech"
 url = "https://pypi.gnuviech-server.de/simple"
-priority = "explicit"
+default = false
+secondary = false
 
 [build-system]
 requires = ["poetry-core"]
diff --git a/setup.cfg b/setup.cfg
new file mode 100644
index 0000000..16fb905
--- /dev/null
+++ b/setup.cfg
@@ -0,0 +1,16 @@
+[pep8]
+exclude = .ropeproject/*
+
+[flake8]
+exclude = .ropeproject/*
+
+[coverage:run]
+source = gvacommon
+branch = True
+
+[coverage:report]
+omit = gvacommon/tests/*
+show_missing = True
+
+[coverage:html]
+directory = coverage-report
diff --git a/setup.py b/setup.py
new file mode 100644
index 0000000..8b04a56
--- /dev/null
+++ b/setup.py
@@ -0,0 +1,57 @@
+#
+# gvacommon - common parts of gnuviechadmin
+# Copyright (C) 2016-2020  Jan Dittberner
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+from setuptools import setup, find_packages
+
+from gvacommon import __version__ as version
+
+with open('README.rst') as readme_file:
+    readme = readme_file.read()
+
+readme += """
+license
+-------
+"""
+
+with open('COPYING') as license_file:
+    readme += license_file.read()
+
+setup(
+    name='gvacommon',
+    version=version,
+    description='common utility code for gnuviechadmin applications',
+    long_description=readme,
+    classifiers=[
+        'Development Status :: 4 - Beta',
+        'License :: OSI Approved :: GNU Affero General Public License v3 or later (AGPLv3+)',
+        'Programming Language :: Python 3',
+        'Programming Language :: Python 3.7',
+        'Intended Audience :: Developers',
+    ],
+    keywords='gnuviechadmin',
+    url='https://git.dittberner.info/gnuviech/gvacommon/',
+    author='Jan Dittberner',
+    author_email='jan@dittberner.info',
+    license='AGPLv3+',
+    packages=find_packages(),
+    test_suite='gvacommon.tests',
+    install_requires=[
+        'Django',
+    ],
+    include_package_data=True,
+    zip_safe=False
+)
diff --git a/tox.ini b/tox.ini
deleted file mode 100644
index f31cff7..0000000
--- a/tox.ini
+++ /dev/null
@@ -1,34 +0,0 @@
-[tox]
-env_list =
-    clean,py39,py310,py311,report
-minversion = 4.6.4
-
-[coverage:paths]
-source =
-    gvacommon
-
-[coverage:report]
-omit =
-    gvacommon/tests/*
-
-[testenv]
-description = run the tests with pytest
-package = wheel
-wheel_build_env = .pkg
-deps =
-    pytest>=6
-    pytest-cov
-commands =
-    pytest --cov --cov-append --cov-report=term-missing {tty:--color=yes} {posargs}
-
-[testenv:report]
-deps = coverage
-skip_install = true
-commands =
-    coverage report -m
-    coverage html
-
-[testenv:clean]
-deps = coverage
-skip_install = true
-commands = coverage erase