diff --git a/.gitignore b/.gitignore
index 7186cd5..0c817be 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,7 +1,6 @@
 *~
 *.sw?
 *.pyc
-.tox
 .coveralls.yml
 .coverage
 /build/
diff --git a/.travis.yml b/.travis.yml
index 9aeea15..fdfd8c9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,14 +10,15 @@ matrix:
     - python: nightly
   include:
     - python: 3.8
-      env: TOXENV=py38-coverage
+      script:
+        - 'pip install coverage'
+        - 'coverage run -m pytest'
+        - 'coverage report'
+      after_script:
+          - |
+            pip install --quiet coveralls
+            coveralls
 install:
-    - pip install --quiet tox-travis
+    - pip install .[testing]
 script:
-    - tox
-after_script:
-    - |
-      if [ "${TOXENV%-coverage}" == "$TOXENV" ]; then
-        pip install --quiet coveralls;
-        coveralls;
-      fi
+    - pytest
diff --git a/MANIFEST.in b/MANIFEST.in
index fb90b35..e54f3ea 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -5,7 +5,6 @@ include AUTHORS.txt
 include .coveragerc
 include conftest.py
 include pytest.ini
-include tox.ini
 include parso/python/grammar*.txt
 recursive-include test *
 recursive-include docs *
diff --git a/deploy-master.sh b/deploy-master.sh
index 876eb1d..79d25f8 100755
--- a/deploy-master.sh
+++ b/deploy-master.sh
@@ -23,7 +23,7 @@ cd $PROJECT_NAME
 git checkout $BRANCH
 
 # Test first.
-tox
+pytest
 
 # Create tag
 tag=v$(python3 -c "import $PROJECT_NAME; print($PROJECT_NAME.__version__)")
diff --git a/docs/docs/development.rst b/docs/docs/development.rst
index 1f6f47f..1332c66 100644
--- a/docs/docs/development.rst
+++ b/docs/docs/development.rst
@@ -21,18 +21,18 @@ The deprecation process is as follows:
 Testing
 -------
 
-The test suite depends on ``tox`` and ``pytest``::
+The test suite depends on ``pytest``::
 
-    pip install tox pytest
+    pip install pytest
 
-To run the tests for all supported Python versions::
+To run the tests use the following::
 
-    tox
+    pytest
 
 If you want to test only a specific Python version (e.g. Python 3.9), it's as
 easy as::
 
-    tox -e py39
+    python3.9 -m pytest
 
 Tests are also run automatically on `Travis CI
 <https://travis-ci.org/davidhalter/parso/>`_.
diff --git a/tox.ini b/tox.ini
deleted file mode 100644
index 9c1e088..0000000
--- a/tox.ini
+++ /dev/null
@@ -1,14 +0,0 @@
-[tox]
-envlist = {py36,py37,py38}
-[testenv]
-extras = testing
-deps =
-    coverage: coverage
-setenv =
-# https://github.com/tomchristie/django-rest-framework/issues/1957
-# tox corrupts __pycache__, solution from here:
-    PYTHONDONTWRITEBYTECODE=1
-    coverage: TOX_TESTENV_COMMAND=coverage run -m pytest
-commands =
-    {env:TOX_TESTENV_COMMAND:pytest} {posargs}
-    coverage: coverage report