diff --git a/setup.py b/setup.py
index a293eac6..37482815 100644
--- a/setup.py
+++ b/setup.py
@@ -18,15 +18,15 @@
 
 testing_requires = [
     'coverage>=4.0',
+    'flake8',
+    'mypy',
     'pytest-cache>=1.0',
     'pytest-cov',
-    'flake8',
     'pytest-flake8>=0.5',
     'pytest>=2.8.0',
 ]
 
 dev_extras = [
-    'mypy',
     'pytest',
     'tox',
 ]
diff --git a/tox.ini b/tox.ini
index 9d2a44f3..106371e1 100644
--- a/tox.ini
+++ b/tox.ini
@@ -15,5 +15,3 @@ ignore = W504, E501
 [testenv:mypy]
 commands =
     mypy src/josepy
-deps =
-    -e .[dev]