diff --git a/lodstorage/__init__.py b/lodstorage/__init__.py
index e69de29..a9f0a54 100644
--- a/lodstorage/__init__.py
+++ b/lodstorage/__init__.py
@@ -0,0 +1 @@
+__version__="0.4.12"
\ No newline at end of file
diff --git a/lodstorage/version.py b/lodstorage/version.py
index 49aea0a..97526d7 100644
--- a/lodstorage/version.py
+++ b/lodstorage/version.py
@@ -3,13 +3,14 @@
 
 @author: wf
 '''
+import lodstorage
 
 class Version(object):
     '''
     Version handling for pyLoDStorage
     '''
     name="pylodstorage"
-    version='0.4.11'
+    version=lodstorage.__version__
     date = '2020-09-10'
     updated = '2023-03-28'
     description='python List of Dict (Table) Storage library'
\ No newline at end of file
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..5af27fb
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,61 @@
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[project]
+name = "pyLodStorage"
+authors = [
+  {name = "Wolfgang Fahl", email = "wf@bitplan.com"}
+]
+maintainers = [
+  {name = "Wolfgang Fahl", email = "wf@bitplan.com"}
+]
+readme = "README.md"
+license= "Apache-2.0"
+dependencies = [
+    "SPARQLWrapper~=1.8.5",
+    "PyYAML",
+    "pandas",
+    "matplotlib>=3.6.2",
+    "tabulate",
+    "numpy",
+    "jsonpickle==1.5.2",
+    "pylatexenc~=2.10",
+    "pygments",
+    "dicttoxml2"
+]
+requires-python = ">=3.7"
+classifiers=[
+    "Programming Language :: Python",
+    "Programming Language :: Python :: 3.8",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11"
+]
+dynamic = ["version", "description"]
+
+[tool.hatch.version]
+path = "lodstorage/__init__.py"
+
+[project.urls]
+Home = "https://github.com/WolfgangFahl/pyLodStorage"
+Documentation = "http://wiki.bitplan.com/index.php/PyLoDStorage"
+Source = "https://github.com/WolfgangFahl/pyLodStorage/blob/master/lodstorage/sql.py"
+IssueTracker = "https://github.com/WolfgangFahl/pyLodStorage/issues"
+
+[project.optional-dependencies]
+test = [
+  "green",
+]
+
+[tool.hatch.build.targets.wheel]
+only-include = ["lodstorage","sampledata"]
+
+[tool.hatch.build.targets.wheel.sources]
+"lodstorage" = "lodstorage"
+"sampledata" = "sampledata"
+
+[project.scripts]
+sparqlquery = "lodstorage.querymain:mainSPARQL"
+sqlquery = "lodstorage.querymain:mainSQL"
+lodquery = "lodstorage.querymain:main"
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index 15ffcf1..0000000
--- a/requirements.txt
+++ /dev/null
@@ -1,26 +0,0 @@
-# libaries needed by pyLoDStorage
-# https://pypi.org/project/SPARQLWrapper/
-# 321 stars, 95 forks
-# https://github.com/RDFLib/sparqlwrapper
-# https://stackoverflow.com/questions/tagged/sparqlwrapper
-SPARQLWrapper~=1.8.5
-# https://pypi.org/project/PyYAML/
-PyYAML
-# https://pypi.org/project/pandas/
-pandas
-# https://pypi.org/project/matplotlib/
-matplotlib>=3.6.2
-# tabulate
-tabulate
-# https://pypi.org/project/numpy/
-numpy
-# https://pypi.org/project/jsonpickle/
-jsonpickle==1.5.2
-# https://pypi.org/project/pylatexenc/
-pylatexenc~=2.10
-# https://pygments.org/
-pygments
-#https://pypi.org/project/dicttoxml/
-# dicttoxml>=1.7.4
-# https://pypi.org/project/dicttoxml2/
-dicttoxml2
\ No newline at end of file
diff --git a/setup.py b/setup.py
deleted file mode 100644
index 8a877b0..0000000
--- a/setup.py
+++ /dev/null
@@ -1,54 +0,0 @@
-# ! important
-# see https://stackoverflow.com/a/27868004/1497139
-from setuptools import setup
-from collections import OrderedDict
-from lodstorage.version import Version
-import pathlib
-
-# where is this setup file?
-here = pathlib.Path(__file__).parent.resolve()
-# get thre requirements
-requirements = (here / 'requirements.txt').read_text(encoding='utf-8').split("\n")
-# and the README content
-long_description = (here / 'README.md').read_text(encoding='utf-8')
-
-setup(
-    name=Version.name,
-    version=Version.version,
-    description=Version.description,
-    packages=['lodstorage','sampledata'],
-    package_data={
-          'sampledata': ['*.yaml'],
-    },
-    author='Wolfgang Fahl',
-    author_email='wf@bitplan.com',
-    maintainer='Wolfgang Fahl',
-    url='https://github.com/WolfgangFahl/pyLodStorage',
-    project_urls=OrderedDict(
-        (
-            ("Documentation", "http://wiki.bitplan.com/index.php/PyLoDStorage"),
-            ("Code", "https://github.com/WolfgangFahl/pyLoDStorage/blob/master/lodstorage/sql.py"),
-            ("Issue tracker", "https://github.com/WolfgangFahl/pyLodStorage/issues"),
-        )
-    ),
-    license='Apache License',
-   
-    install_requires=requirements,
-    classifiers=[
-            'Programming Language :: Python',
-            'Programming Language :: Python :: 3.7',
-            'Programming Language :: Python :: 3.8',
-            'Programming Language :: Python :: 3.9',
-            'Programming Language :: Python :: 3.10',
-            'Programming Language :: Python :: 3.11'
-    ],
-    entry_points={
-      'console_scripts': [
-        'sparqlquery = lodstorage.querymain:mainSPARQL',
-        'sqlquery=lodstorage.querymain:mainSQL',
-        'lodquery=lodstorage.querymain:main'
-      ],
-    },
-    long_description=long_description,
-    long_description_content_type='text/markdown'
-)