diff --git a/axe_selenium_python/axe.py b/axe_selenium_python/axe.py
index 31d6e3f..9d3fbd9 100644
--- a/axe_selenium_python/axe.py
+++ b/axe_selenium_python/axe.py
@@ -2,8 +2,8 @@
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
-from os import path
 import json
+from os import path
 
 _DEFAULT_SCRIPT = path.join(path.dirname(__file__), 'src', 'axe.min.js')
 
diff --git a/axe_selenium_python/tests/conftest.py b/axe_selenium_python/tests/conftest.py
index 9ab25f8..1fd0a82 100644
--- a/axe_selenium_python/tests/conftest.py
+++ b/axe_selenium_python/tests/conftest.py
@@ -6,9 +6,8 @@
 from datetime import datetime
 
 import pytest
-from py.xml import html
-
 from axe_selenium_python import Axe
+from py.xml import html
 
 _DEFAULT_SCRIPT = os.path.join(os.path.dirname(__file__), 'src', 'axe.min.js')
 
diff --git a/axe_selenium_python/tests/requirements/flake8.txt b/axe_selenium_python/tests/requirements/flake8.txt
index 56a1631..73cc7ec 100644
--- a/axe_selenium_python/tests/requirements/flake8.txt
+++ b/axe_selenium_python/tests/requirements/flake8.txt
@@ -1 +1,2 @@
 flake8==3.5.0
+flake8-isort==2.5
diff --git a/axe_selenium_python/tests/test_axe.py b/axe_selenium_python/tests/test_axe.py
index 85802c3..ca6a997 100644
--- a/axe_selenium_python/tests/test_axe.py
+++ b/axe_selenium_python/tests/test_axe.py
@@ -3,6 +3,7 @@
 # You can obtain one at http://mozilla.org/MPL/2.0/.
 
 from os import path
+
 import pytest
 
 
diff --git a/tox.ini b/tox.ini
index 5748e4d..0be6794 100644
--- a/tox.ini
+++ b/tox.ini
@@ -21,6 +21,11 @@ commands = flake8 {posargs:.}
 [flake8]
 ignore = E501
 
+[isort]
+default_section = THIRDPARTY
+known_first_party = axe-selenium-python
+skip = build, .tox
+
 [pytest]
 addopts = --verbose --driver=Firefox
 base_url = https://web-mozillians-staging.production.paas.mozilla.community