diff --git a/requirements-dev.txt b/requirements-dev.txt
deleted file mode 100644
index 053148f..0000000
--- a/requirements-dev.txt
+++ /dev/null
@@ -1 +0,0 @@
-tox
diff --git a/tox.ini b/tox.ini
index b06031b..83b3465 100644
--- a/tox.ini
+++ b/tox.ini
@@ -9,7 +9,7 @@ envlist =
 # ignore missing setup.py
 skipsdist = True
 
-[testenv:py]
+[testenv]
 setenv =
     PYTHONDONTWRITEBYTECODE = 1
 deps =
@@ -19,22 +19,14 @@ deps =
     ipython
     pytest
 commands =
-    coverage run --source=bin/ -m pytest -vv -rxs --tb native -s --durations 10 --strict {posargs:tests}
+    coverage run --source=bin/ -m py.test -rxs --tb native -s --strict {posargs:tests}
     coverage report -m
 
-[testenv:flake8]
-deps =
-    flake8
-    pyflakes
-    pep8
-    mccabe
-commands =
-    flake8 .
 
 [testenv:pre-commit]
 deps =
-    pre-commit
-command =
+    pre-commit>=0.7.0
+commands =
     pre-commit {posargs}
 
 [pytest]