diff --git a/.travis.yml b/.travis.yml
index e798535..936f566 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,10 +1,10 @@
 language: python
 python:
-  - 2.7
-  - 3.3
-  - 3.4
-  - 3.5
-  - pypy
+  - 3.6
+  - 3.7
+  - 3.8
+  - 3.9
+  - pypy3
 
 install:
   - pip install tox tox-travis
diff --git a/README.rst b/README.rst
index e5ae659..110816f 100644
--- a/README.rst
+++ b/README.rst
@@ -9,37 +9,43 @@ TDDBC for Python with Pytest
 動作確認環境
 ============
 
-- Python 2.7.6
-- Python 3.3.1
-- PyPy 1.9.0
-- PyPy 2.2.0
+- Python 3.8.5
+- pytest 6.2.4
+
+※Python2は2020年1月にサポート終了(EOL)していますので、Python3をご利用ください。
 
 セットアップ
 ============
 
+以下のように実行して、環境を構築してください。
+
 .. code-block:: sh
 
-   $ pip install -r requirements.txt
+   $ git clone https://github.com/yattom/python_pytest.git
+   $ cd python_pytest
+   $ pip3 install -r requirements.txt
 
-**setup.py** を実行し
+テストを実行するには **pytest** コマンドを使います。
 
 .. code-block:: sh
 
-   $ python setup.py test
+   $ pytest
    
    ...
    
    # Output sample
-   ======================== test session starts =================================
-   platform linux2 -- Python 2.7.3[pypy-2.2.0-final] -- pytest-2.4.2
-   -- ~/.virtualenvs/tddbc_python_pytest_pypy22/bin/python
-   plugins: cov, xdist
+   ============================= test session starts ==============================
+   platform linux -- Python 3.8.5, pytest-6.2.4, py-1.10.0, pluggy-0.13.1 -- /usr/bin/python3
+   cachedir: .pytest_cache
+   rootdir: /root/work/python_pytest, configfile: setup.cfg
+   plugins: forked-1.3.0, cov-2.11.1, xdist-2.2.1
    collected 3 items
    
-   tests/acme/test_acme.py:28: TestPython.test_be_out_of_question PASSED
-   tests/acme/test_acme.py:41: TestMontyPython.test_say_name[Monty Python] PASSED
-   tests/acme/test_acme.py:41: TestMontyPython.test_say_name[John Smith] PASSED
-   ======================== 3 passed in 0.10 seconds ============================
+   tests/acme/test_snake.py::TestPython::test_be_out_of_question PASSED     [ 33%]
+   tests/acme/test_snake.py::TestMontyPython::test_say_name[Monty Python] PASSED [ 66%]
+   tests/acme/test_snake.py::TestMontyPython::test_say_name[John Smith] PASSED [100%]
+   
+   ============================== 3 passed in 0.04s ===============================
 
 のように正常終了すればOKです
 
diff --git a/requirements.txt b/requirements.txt
index ab0619b..8f8cbf6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,9 +1,14 @@
+-e .
+appdirs==1.4.4
 cov-core==1.15.0
-coverage==4.4.1
-execnet==1.4.1
-py==1.4.34
-pytest==3.1.3
-pytest-cov==2.5.1
-pytest-xdist==1.18.0
-tox==2.7.0
-virtualenv==15.1.0
+coverage==5.5
+distlib==0.3.1
+execnet==1.8.0
+filelock==3.0.12
+iniconfig==1.1.1
+py==1.10.0
+pytest-cov==2.11.1
+pytest-xdist==2.2.1
+pytest==6.2.4
+tox==3.23.1
+virtualenv==20.4.6
diff --git a/setup.py b/setup.py
index 4687786..d13886d 100644
--- a/setup.py
+++ b/setup.py
@@ -1,19 +1,4 @@
 from setuptools import setup, find_packages
-from setuptools.command.test import test as TestCommand
-import sys
-
-
-class PyTest(TestCommand):
-    def finalize_options(self):
-        TestCommand.finalize_options(self)
-        self.test_args = []
-        self.test_suite = True
-
-    def run_tests(self):
-        #import here, cause outside the eggs aren't loaded
-        import pytest
-        errno = pytest.main(self.test_args)
-        sys.exit(errno)
 
 setup(
     name='skeleton_for_pytest',
@@ -25,7 +10,6 @@ def run_tests(self):
     license='MIT',
     packages=find_packages(exclude=['tests']),
     tests_require=['pytest'],
-    cmdclass={'test': PyTest},
     classifiers=[
         'Intended Audience :: Developers',
         'License :: OSI Approved :: MIT License',
diff --git a/tox.ini b/tox.ini
index 2d3a29c..117cff9 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,13 +1,13 @@
 [tox]
 skipsdist = True
 envlist =
-    py27,
-    py33,
-    py34,
-    py35
+    py36,
+    py37,
+    py38,
+    py39
 
 [testenv]
 deps=
     -r{toxinidir}/requirements.txt
 commands=
-  python setup.py test
+  pytest