diff --git a/MANIFEST.in b/MANIFEST.in
index 498b33c0..5015d0aa 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -10,5 +10,3 @@ recursive-include TTS *.md
 recursive-include TTS *.py
 recursive-include TTS *.pyx
 recursive-include images *.png
-recursive-exclude tests *
-prune tests*
diff --git a/Makefile b/Makefile
index a24c41fc..3833f733 100644
--- a/Makefile
+++ b/Makefile
@@ -62,15 +62,9 @@ system-deps:	## install linux system deps
 dev-deps:  ## install development deps
 	pip install -r requirements.dev.txt
 
-doc-deps:  ## install docs dependencies
-	pip install -r docs/requirements.txt
-
 build-docs: ## build the docs
 	cd docs && make clean && make build
 
-hub-deps:  ## install deps for torch hub use
-	pip install -r requirements.hub.txt
-
 deps:	## install 🐸 requirements.
 	pip install -r requirements.txt
 
diff --git a/TTS/tts/utils/monotonic_align/setup.py b/TTS/tts/utils/monotonic_align/setup.py
deleted file mode 100644
index f22bc6a3..00000000
--- a/TTS/tts/utils/monotonic_align/setup.py
+++ /dev/null
@@ -1,7 +0,0 @@
-# from distutils.core import setup
-# from Cython.Build import cythonize
-# import numpy
-
-# setup(name='monotonic_align',
-#       ext_modules=cythonize("core.pyx"),
-#       include_dirs=[numpy.get_include()])
diff --git a/pyproject.toml b/pyproject.toml
index b58716e2..952b41e8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,11 +1,10 @@
 [build-system]
 requires = [
     "setuptools",
-    "wheel",
     "cython~=0.29.30",
-    "numpy>=1.22.0",
-    "packaging",
+    "numpy>=1.24.3",
 ]
+build-backend = "setuptools.build_meta"
 
 [tool.setuptools.packages.find]
 include = ["TTS*"]
diff --git a/setup.cfg b/setup.cfg
deleted file mode 100644
index 1f31cb5d..00000000
--- a/setup.cfg
+++ /dev/null
@@ -1,8 +0,0 @@
-[build_py]
-build_lib=temp_build
-
-[bdist_wheel]
-bdist_dir=temp_build
-
-[install_lib]
-build_dir=temp_build
diff --git a/setup.py b/setup.py
index 722959cd..32e4934c 100644
--- a/setup.py
+++ b/setup.py
@@ -21,36 +21,13 @@
 #                                  ``````
 
 import os
-import subprocess
-import sys
 
 import numpy
-import setuptools.command.build_py
-import setuptools.command.develop
 from Cython.Build import cythonize
 from setuptools import Extension, setup
 
 cwd = os.path.dirname(os.path.abspath(__file__))
 
-
-class build_py(setuptools.command.build_py.build_py):  # pylint: disable=too-many-ancestors
-    def run(self):
-        setuptools.command.build_py.build_py.run(self)
-
-
-class develop(setuptools.command.develop.develop):
-    def run(self):
-        setuptools.command.develop.develop.run(self)
-
-
-# The documentation for this feature is in server/README.md
-package_data = ["TTS/server/templates/*"]
-
-
-def pip_install(package_name):
-    subprocess.call([sys.executable, "-m", "pip", "install", package_name])
-
-
 requirements = open(os.path.join(cwd, "requirements.txt"), "r").readlines()
 with open(os.path.join(cwd, "requirements.notebooks.txt"), "r") as f:
     requirements_notebooks = f.readlines()
@@ -68,16 +45,8 @@ exts = [
     )
 ]
 setup(
-    # cython
     include_dirs=numpy.get_include(),
     ext_modules=cythonize(exts, language_level=3),
-    # ext_modules=find_cython_extensions(),
-    # package
-    cmdclass={
-        "build_py": build_py,
-        "develop": develop,
-        # 'build_ext': build_ext
-    },
     install_requires=requirements,
     extras_require={
         "all": requirements_all,