diff --git a/.circleci/config.yml b/.circleci/config.yml
index 38e02a3..df54a07 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -16,7 +16,7 @@ jobs:
          key: v1-tox-{{ checksum "tox.ini" }}-{{ checksum "requirements.txt" }}
          paths:
            - .tox
-      - run: tox -e flake8
+      - run: tox -e flake8 --per-file-ignores ='tests/models.py:F401'
 
   isort:
     docker:
@@ -52,8 +52,8 @@ jobs:
            - .tox
       - run: tox -e py2-django1_11
       - run: tox -e py3-django1_11
-      - run: tox -e py3-django2_0
       - run: tox -e py3-django2_1
+      - run: tox -e py3-django2_2
       - run: tox -e coverage
 
 workflows:
diff --git a/tox.ini b/tox.ini
index 5a25d00..5047cc6 100644
--- a/tox.ini
+++ b/tox.ini
@@ -35,7 +35,7 @@ commands = isort -c -rc nopassword tests
 [testenv:coverage]
 basepython = python3
 deps = coverage
-commands = 
+commands =
     coverage combine
-    coverage report 
+    coverage report
     coverage xml