diff --git a/.github/workflows/pypi-mathphys.yml b/.github/workflows/pypi-mathphys.yml
index 5257a22..5cd64f8 100644
--- a/.github/workflows/pypi-mathphys.yml
+++ b/.github/workflows/pypi-mathphys.yml
@@ -17,7 +17,7 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install setuptools wheel twine
+          pip install setuptools wheel twine build
 
       - name: Build and publish
         env:
@@ -25,6 +25,6 @@ jobs:
           TWINE_PASSWORD: ${{ secrets.MATHPHYS_PYPI_TOKEN }}
         run: |
           git describe --tags | sed -e 's/^v//g' > mathphys/VERSION
-          python setup.py sdist bdist_wheel
+          python -m build
           twine upload dist/*
           cd ..
diff --git a/Makefile b/Makefile
index 2e816c4..4b3d53d 100644
--- a/Makefile
+++ b/Makefile
@@ -29,7 +29,7 @@ help:  ## Show this help.
 	@grep '##' Makefile| sed -e '/@/d' | sed -r 's,(.*?:).*##(.*),\1\2,g'
 
 dist:  ## Build setuptools dist
-	python setup.py sdist bdist_wheel
+	python -m build
 
 distupload: ## Upload package dist to PyPi
 	python -m twine upload --verbose dist/*
diff --git a/mathphys/functions.py b/mathphys/functions.py
index f7ba61d..40f07c3 100644
--- a/mathphys/functions.py
+++ b/mathphys/functions.py
@@ -1,18 +1,18 @@
 """Useful functions."""
 import os as _os
 import builtins as _builtins
-import importlib as _importlib
 from collections import namedtuple as _namedtuple
 from functools import partial as _partial
 import pickle as _pickle
 import subprocess as _subprocess
-import pkg_resources as _pkg_resources
+# NOTE: Change to importlib.metadata once python3.6 is not supported anymore:
+import importlib_metadata as _implib_meta
 from types import ModuleType as _ModuleType
 import gzip as _gzip
 
 try:
     import h5py as _h5py
-except:
+except ModuleNotFoundError:
     _h5py = None
 
 
@@ -305,8 +305,8 @@ def get_path_from_package(package):
         pkg = package.__package__
     else:
         raise ValueError('Invalid package type, must be str or module')
-    dist = _pkg_resources.get_distribution(pkg)
-    return dist.location, dist.version
+    dist = _implib_meta.distribution(pkg)
+    return str(dist.locate_file("")), dist.version
 
 
 def is_git_repo(path):
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..5a06ade
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,73 @@
+[build-system]
+requires = ["setuptools>=44"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "mathphys"
+authors = [{ name = "lnls-fac" } ]
+maintainers = [
+  {name = "Ana Oliveira", email = "ana.clara@lnls.br"},
+  {name = "Ximenes Resende", email = "xresende@gmail.com"},
+  {name = "Fernando H. de Sá", email = "fernandohds564@gmail.com"},
+  {name = "Murilo Barbosa Alves", email= "alvesb.murilo@gmail.com"}
+]
+description = "LNLS Math and Physics Utilities"
+readme = "README.md" 
+dynamic = ["version", "dependencies"]
+requires-python = ">=3.4"
+classifiers = [
+    "Intended Audience :: Science/Research",
+    "Programming Language :: Python",
+    "Topic :: Scientific/Engineering",
+]
+license = "MIT"
+license-files= [ "LICENSE", ]
+
+[project.urls]
+Homepage = "https://github.com/lnls-fac/mathphys"
+Download = "https://github.com/lnls-fac/mathphys"
+Repository = "https://github.com/lnls-fac/mathphys.git"
+Issues = "https://github.com/lnls-fac/mathphys/issues"
+
+# --- Configurações específicas do Setuptools --- 
+[tool.setuptools]
+include-package-data = true 
+
+[tool.setuptools.dynamic]
+version = { file = "VERSION" }
+dependencies = { file = "requirements.txt" }
+
+[tool.setuptools.package-data]
+mathphys = ["VERSION"]
+
+# --- linter and formatter configurations ---
+[tool.ruff]
+select = [
+    "W", "E", "A", "B", "C90", "D", "I002", "N", "F", "G", "ARG", "S", "NPY"]
+ignore = [
+    "D203", "D204", "D213", "D215", "D400", "D401", "D404", "D406", "D407",
+    "D408", "D409", "D413", "E203", "E226"]
+ignore-init-module-imports = true
+preview = true
+line-length = 79
+fix = true
+
+[tool.ruff.extend-per-file-ignores]
+"__init__.py" = ["F401", "F821"]
+
+[tool.ruff.format]
+skip-magic-trailing-comma = true
+
+[tool.ruff.lint.isort]
+split-on-trailing-comma = false
+combine-as-imports = true
+
+[tool.isort]
+split_on_trailing_comma = false
+combine_as_imports = true
+combine_star = true
+multi_line_output = "HANGING_INDENT"
+order_by_type = false
+
+[tool.black]
+line-length = 79
diff --git a/requirements.txt b/requirements.txt
index f4e0a77..5fb8af6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
+importlib-metadata
 numpy>=1.18,<=1.23
 matplotlib>=3.1.2
 h5py>=3.1.0
diff --git a/setup.py b/setup.py
index bf38892..695d4de 100755
--- a/setup.py
+++ b/setup.py
@@ -1,12 +1,12 @@
 #!/usr/bin/env python-sirius
 """Setup module."""
 
+import pathlib
 from setuptools import setup
-import pkg_resources
 
 
 def get_abs_path(relative):
-    return pkg_resources.resource_filename(__name__, relative)
+    return str(pathlib.Path(__file__).parent / relative)
 
 
 with open(get_abs_path("README.md"), "r") as _f: