diff --git a/docs/source/testing.rst b/docs/source/testing.rst
index 31c4a87..ad67ca2 100644
--- a/docs/source/testing.rst
+++ b/docs/source/testing.rst
@@ -3,13 +3,5 @@ Testing
 
 See :ref:`install` to install the dependencies.
 
-See `test/README.md` to run the tests in `test`.
-
 To run the tests that use `pytest`, install the testing dependencies running
 ``pip install .[test]``.
-
-In Debian, you can install the testing dependencies in the system running ``apt
-install tox``.
-
-Run the tests with the command `tox`. You can run individual tests by running
-``tox -e <testname>``, eg. ``tox -e py37`` or ``tox -e unit``.
diff --git a/setup.cfg b/setup.cfg
index 022d177..89e6e6f 100755
--- a/setup.cfg
+++ b/setup.cfg
@@ -31,14 +31,9 @@ python_requires = >= 3.6
 test_suite = tests
 setup_requires =
     setuptools >=39.2.0
-    # To automatically write the version from a SCM.
-    # Note: It fails with tags named as `Release_2.2.0-RC0`, because it is
-    # not conforming to semantic versioning, but it succeed with tags as
-    # `2.2.0-rc0`.
     setuptools_scm >= 4.1.2
 [options.extras_require]
 # To install these dependencies, run pip install .[test]
 test =
     pytest
-    tox
 doc = sphinx
diff --git a/tox.ini b/tox.ini
deleted file mode 100644
index 6026f39..0000000
--- a/tox.ini
+++ /dev/null
@@ -1,35 +0,0 @@
-[tox]
-skip_missing_interpreters = True
-envlist = py36, py37, py38, inst, setup, unit, doc
-
-# test that it can be installed with custom commands and clean env
-[testenv:inst]
-skip_install = True
-commands =
-    - pip install .
-recreate = True
-
-[testenv:setup]
-skip_install = True
-commands = python setup.py install
-recreate = True
-
-[testenv:unit]
-deps = .[test]
-commands = pytest -svv tests
-
-[testenv:doc]
-deps = .[doc]
-whitelist_externals = make
-changedir = docs
-commands =
-    make html
-    make man
-
-# this requires Internet, it should not be in envlist
-[testenv:doclinks]
-deps = .[doc]
-whitelist_externals = make
-changedir = docs
-commands =
-    make linkcheck