diff --git a/.travis.yml b/.travis.yml
index 9a0288a4..4f7a20fe 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,6 +9,7 @@ install:
 - pip install -r tests/requirements.txt
 script:
 - flake8 arq/ tests/
+- ./tests/isort_test.sh
 - py.test --cov=arq
 after_success:
 - coverage combine
diff --git a/arq/cli.py b/arq/cli.py
index 33f778ae..f156505e 100644
--- a/arq/cli.py
+++ b/arq/cli.py
@@ -1,10 +1,10 @@
 import logging.config
+
 import click
 
 from .version import VERSION
 from .worker import RunWorkerProcess, import_string
 
-
 batch_help = 'Batch mode: exit once no jobs are found in any queue.'
 verbose_help = 'Enable verbose output.'
 
diff --git a/arq/main.py b/arq/main.py
index 93fff3dc..1003c4da 100644
--- a/arq/main.py
+++ b/arq/main.py
@@ -4,8 +4,7 @@
 
 import msgpack
 
-from .utils import RedisMixin, timestamp, ellipsis
-
+from .utils import RedisMixin, ellipsis, timestamp
 
 __all__ = ['Actor', 'concurrent', 'Job']
 
diff --git a/arq/testing.py b/arq/testing.py
index 5efbf88d..f0f1942f 100644
--- a/arq/testing.py
+++ b/arq/testing.py
@@ -7,7 +7,7 @@
 import pytest
 from aioredis import create_redis
 
-from arq import RedisMixin, timestamp, BaseWorker
+from arq import BaseWorker, RedisMixin, timestamp
 
 logger = logging.getLogger('arq.mock')
 
diff --git a/arq/utils.py b/arq/utils.py
index c0b577ed..330ea0d9 100644
--- a/arq/utils.py
+++ b/arq/utils.py
@@ -1,7 +1,7 @@
 import asyncio
 import base64
-from datetime import datetime
 import os
+from datetime import datetime
 
 import aioredis
 
diff --git a/arq/worker.py b/arq/worker.py
index 2d46937d..db22be03 100644
--- a/arq/worker.py
+++ b/arq/worker.py
@@ -1,16 +1,16 @@
 import asyncio
-from importlib import import_module, reload
 import logging
-from multiprocessing import Process
 import os
 import signal
-from signal import Signals
 import sys
 import time
+from importlib import import_module, reload
+from multiprocessing import Process
+from signal import Signals
 
 from .logs import default_log_config
 from .main import Actor, Job
-from .utils import RedisMixin, timestamp, cached_property, gen_random, ellipsis
+from .utils import RedisMixin, cached_property, ellipsis, gen_random, timestamp
 
 __all__ = ['BaseWorker', 'import_string', 'RunWorkerProcess']
 
diff --git a/runtests.sh b/runtests.sh
index 448c4dee..6bfa0602 100755
--- a/runtests.sh
+++ b/runtests.sh
@@ -6,8 +6,11 @@ if [ $pytest == 0 ] ; then
     coverage combine
     coverage html
 fi
+./tests/isort_test.sh
 echo "pytest exit code: ${pytest}"
+isort=$?
+echo "isort exit code:  ${isort}"
 flake8 arq/ tests/
 flake=$?
 echo "flake8 exit code: ${flake}"
-exit $((${flake} + ${pytest}))
+exit $((${pytest} + ${flake} + ${isort}))
diff --git a/tests/isort_test.sh b/tests/isort_test.sh
new file mode 100755
index 00000000..d1a13e5c
--- /dev/null
+++ b/tests/isort_test.sh
@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+isort_result=$(isort -rc --wrap-length 120 --diff arq)
+if [[ $isort_result == *"arq"* ]] ; then
+    printf "changes:\n $isort_result\n\nisort changed directory, therefore there's an import order problem\n"
+    exit 1
+fi
+exit 0
diff --git a/tests/requirements.txt b/tests/requirements.txt
index 16de66a2..478ebfcb 100644
--- a/tests/requirements.txt
+++ b/tests/requirements.txt
@@ -1,6 +1,7 @@
 codecov
 coverage
 flake8
+isort
 pep8
 pytest
 pytest-cov