diff --git a/Makefile b/Makefile
index ce7497486..c24cbc449 100644
--- a/Makefile
+++ b/Makefile
@@ -13,10 +13,10 @@ build-py3:
 test: unit-test integration-test unit-test-py3 integration-test-py3
 
 unit-test: build
-	docker run docker-py python tests/test.py
+	docker run docker-py py.test tests/test.py
 
 unit-test-py3: build-py3
-	docker run docker-py3 python tests/test.py
+	docker run docker-py3 py.test tests/test.py
 
 integration-test: build
 	docker run -e NOT_ON_HOST=true -v `$(HOST_TMPDIR)`:/tmp -v /var/run/docker.sock:/var/run/docker.sock docker-py python tests/integration_test.py
diff --git a/test-requirements.txt b/test-requirements.txt
index 969f7a234..8461e3618 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,2 +1,3 @@
 mock==1.0.1
-coverage==3.7.1
+pytest==2.7.2
+pytest-cov==2.1.0
diff --git a/tests/fake_api.py b/tests/fake_api.py
index 199b4f649..d6639885c 100644
--- a/tests/fake_api.py
+++ b/tests/fake_api.py
@@ -12,7 +12,7 @@
 #    See the License for the specific language governing permissions and
 #    limitations under the License.
 
-import fake_stat
+from . import fake_stat
 
 CURRENT_VERSION = 'v1.19'
 
diff --git a/tests/test.py b/tests/test.py
index 00ef0d4b1..56f2825ae 100644
--- a/tests/test.py
+++ b/tests/test.py
@@ -27,7 +27,6 @@
 import tempfile
 import threading
 import time
-import unittest
 import warnings
 import random
 
@@ -35,8 +34,8 @@
 import requests
 import six
 
-import base
-import fake_api
+from . import base
+from . import fake_api
 
 try:
     from unittest import mock
@@ -2331,6 +2330,3 @@ def test_early_stream_response(self):
 
             self.assertEqual(list(stream), [
                 str(i).encode() for i in range(50)])
-
-if __name__ == '__main__':
-    unittest.main()
diff --git a/tests/utils_test.py b/tests/utils_test.py
index 91d676fd7..b641004d8 100644
--- a/tests/utils_test.py
+++ b/tests/utils_test.py
@@ -1,6 +1,5 @@
 import os
 import os.path
-import unittest
 import tempfile
 
 from docker.client import Client
@@ -13,7 +12,7 @@
 from docker.utils.ports import build_port_bindings, split_port
 from docker.auth import resolve_repository_name, resolve_authconfig
 
-import base
+from . import base
 
 
 class UtilsTest(base.BaseTestCase):
@@ -474,6 +473,3 @@ def test_build_port_bindings_with_nonmatching_internal_port_ranges(self):
             ["127.0.0.1:1000:1000", "127.0.0.1:2000:2000"])
         self.assertEqual(port_bindings["1000"], [("127.0.0.1", "1000")])
         self.assertEqual(port_bindings["2000"], [("127.0.0.1", "2000")])
-
-if __name__ == '__main__':
-    unittest.main()
diff --git a/tox.ini b/tox.ini
index 10b9df935..eb31bee51 100644
--- a/tox.ini
+++ b/tox.ini
@@ -5,11 +5,7 @@ skipsdist=True
 [testenv]
 usedevelop=True
 commands =
-    {envbindir}/coverage run -p tests/test.py
-    {envbindir}/coverage run -p tests/utils_test.py
-    {envbindir}/coverage combine
-    {envbindir}/coverage report
-    {envbindir}/coverage html
+    py.test --cov=docker tests/test.py tests/utils_test.py
 deps =
     -r{toxinidir}/test-requirements.txt
     -r{toxinidir}/requirements.txt