diff --git a/.github/workflows/pull_request.yaml b/.github/workflows/pull_request.yaml
index f3863cd..dd9c7ec 100644
--- a/.github/workflows/pull_request.yaml
+++ b/.github/workflows/pull_request.yaml
@@ -35,8 +35,7 @@ jobs:
 
     - name: Install dependencies
       run: |
-        python -m pip install --upgrade pip setuptools wheel
-        python -m pip install --upgrade 'tox>=4.0.0'
+        python -m pip install --upgrade pip setuptools wheel tox>=4.2
 
     - name: Run tox targets for ${{ matrix.python-version }}
       run: tox run -f py$(echo ${{ matrix.python-version }} | tr -d .)
diff --git a/README.rst b/README.rst
index cb2176b..ec6367d 100644
--- a/README.rst
+++ b/README.rst
@@ -197,55 +197,43 @@ Contribute
 
 .. code-block:: bash
 
-  $ sudo apt-get install pyenv tox
+  $ sudo apt-get install pyenv tox==4.23.2 virtualenv-pyenv==0.5.0
 
-#. Install other python versions
+#. Install python versions
 
 .. code-block:: bash
 
   $ pyenv install 3.7 3.8 3.9 3.10 3.11 3.12 3.13
 
 
-#. Make them global for **detox** package
+#. Check your code and tests with **tox**
 
 .. code-block:: bash
 
-  $ pyenv global 3.7 3.8 3.9 3.10 3.11 3.12 3.13
+  $ VIRTUALENV_DISCOVERY=pyenv tox
+  ---------- coverage: platform linux, python 3.13.2-final-0 -----------
+  Name                                     Stmts   Miss Branch BrPart  Cover   Missing
+  ------------------------------------------------------------------------------------
+  diskcollections/__init__.py                  0      0      0      0   100%
+  diskcollections/iterables/__init__.py        7      0      0      0   100%
+  diskcollections/iterables/clients.py       112      1     28      1    99%   90
+  diskcollections/iterables/iterables.py     159      0     74      0   100%
+  diskcollections/serializers.py              32      0      0      0   100%
+  ------------------------------------------------------------------------------------
+  TOTAL                                      310      1    102      1    99%
+
+  Required test coverage of 95% reached. Total coverage: 99.51%
+  ====================================================================================================== 63 passed, 1 warning in 0.46s =======================================================================================================
+    lint: OK (0.55=setup[0.03]+cmd[0.20,0.32] seconds)
+    py37: OK (0.47=setup[0.01]+cmd[0.46] seconds)
+    py38: OK (0.47=setup[0.01]+cmd[0.46] seconds)
+    py39: OK (0.47=setup[0.01]+cmd[0.46] seconds)
+    py310: OK (0.63=setup[0.01]+cmd[0.62] seconds)
+    py311: OK (0.45=setup[0.01]+cmd[0.45] seconds)
+    py312: OK (0.69=setup[0.01]+cmd[0.69] seconds)
+    py313: OK (0.75=setup[0.01]+cmd[0.74] seconds)
+    evaluation failed :( (4.12 seconds)
 
-#. Install globally **detox**
-
-.. code-block:: bash
-
-  $ sudo pip install detox
-
-#. Check your code and tests with **detox**
-
-.. code-block:: bash
-
-  $ detox -n 1
-  GLOB sdist-make: python-disk-collections/setup.py
-  lint inst-nodeps: python-disk-collections/.tox/.tmp/package/7/python-disk-collections-0.0.4.zip
-  lint run-test-pre: PYTHONHASHSEED='1334400931'
-  lint runtests: commands[0] | flake8
-  lint runtests: commands[1] | python setup.py check -r -s -m
-  py27 inst-nodeps: python-disk-collections/.tox/.tmp/package/7/python-disk-collections-0.0.4.zip
-  py27 run-test-pre: PYTHONHASHSEED='1334400931'
-  py27 runtests: commands[0] | py.test -v --cov diskcollections --cov-config .coveragerc --cov-report term-missing --cov-fail-under 95
-  ...
-  py311 inst-nodeps: python-disk-collections/.tox/.tmp/package/7/python-disk-collections-0.0.4.zip
-  py311 run-test-pre: PYTHONHASHSEED='1334400931'
-  py311 runtests: commands[0] | py.test -v --cov diskcollections --cov-config .coveragerc --cov-report term-missing --cov-fail-under 95
-  _________________________________________________________________________________________________________________ summary __________________________________________________________________________________________________________________
-    lint: commands succeeded
-    py27: commands succeeded
-    py35: commands succeeded
-    py36: commands succeeded
-    py37: commands succeeded
-    py38: commands succeeded
-    py39: commands succeeded
-    py310: commands succeeded
-    py311: commands succeeded
-    congratulations :)
 
 #. Send a pull request!
 
diff --git a/setup.py b/setup.py
index d29aa76..2fa11a2 100644
--- a/setup.py
+++ b/setup.py
@@ -25,7 +25,6 @@ def url(*args):
                 'like bulltins but keeps items at disk.',
     long_description=readme,
     packages=find_packages(),
-    tests_require=['pytest', 'tox', 'flake8'],
     url=url(url_profile, package_name),
     download_url=url(url_profile, package_name, 'archive/%s.tar.gz' % version),
     license='MIT',
diff --git a/tox.ini b/tox.ini
index 2cf1d7f..5a1877d 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,19 +1,23 @@
 [tox]
-usedevelop = True
-envlist =
-    lint,
+min_version = 4.2
+use_develop = True
+no_package = True
+env_list =
+    lint
     py{37,38,39,310,311,312,313}
 
 [testenv]
 deps =
     pytest
     pytest-cov
-commands = py.test -v \
+setenv =
+    PYTHONDONTWRITEBYTECODE=1
+commands = pytest -v \
     --cov diskcollections \
     --cov-config .coveragerc \
     --cov-report term-missing \
     --cov-fail-under 95 \
-    {posargs}
+    {posargs:tests}
 passenv =
     TRAVIS
     TRAVIS_BRANCH
@@ -21,7 +25,7 @@ passenv =
 
 
 [testenv:lint]
-skipsdist = True
+skips_dist = True
 skip_install = True
 deps =
     flake8
@@ -30,14 +34,6 @@ commands =
     flake8
     python setup.py check -r -s -m
 
-[testenv:build]
-skip_install = true
-deps =
-    wheel
-    setuptools
-commands =
-    python setup.py -q sdist bdist_wheel
-
 
 [flake8]
 select = E,F,W