diff --git a/Makefile b/Makefile
index fe7f18e97..356d46682 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 .PHONY: venv install test-install test test-integ test-docker clean nopyc
 
-venv:
+venv: clean
 	@python --version || (echo "Python is not installed, please install Python 2 or Python 3"; exit 1);
 	virtualenv --python=python venv
 
diff --git a/sendgrid/helpers/eventwebhook/__init__.py b/sendgrid/helpers/eventwebhook/__init__.py
index e6aafb708..5bb7174f8 100644
--- a/sendgrid/helpers/eventwebhook/__init__.py
+++ b/sendgrid/helpers/eventwebhook/__init__.py
@@ -1,12 +1,14 @@
 from ellipticcurve.ecdsa import Ecdsa
-from ellipticcurve.signature import Signature
 from ellipticcurve.publicKey import PublicKey
+from ellipticcurve.signature import Signature
 
-class EventWebhook():
+
+class EventWebhook:
     """
     This class allows you to use the Event Webhook feature. Read the docs for
     more details: https://sendgrid.com/docs/for-developers/tracking-events/event
     """
+
     def __init__(self, public_key=None):
         """
         Construct the Event Webhook verifier object
diff --git a/test/test_eventwebhook.py b/test/test_eventwebhook.py
index 66a26700b..01c8129f1 100644
--- a/test/test_eventwebhook.py
+++ b/test/test_eventwebhook.py
@@ -3,6 +3,7 @@
 
 from sendgrid import EventWebhook
 
+
 class UnitTests(unittest.TestCase):
     @classmethod
     def setUpClass(cls):
@@ -10,8 +11,8 @@ def setUpClass(cls):
         cls.SIGNATURE = 'MEUCIQCtIHJeH93Y+qpYeWrySphQgpNGNr/U+UyUlBkU6n7RAwIgJTz2C+8a8xonZGi6BpSzoQsbVRamr2nlxFDWYNH2j/0='
         cls.TIMESTAMP = '1588788367'
         cls.PAYLOAD = json.dumps({
-            'event': 'test_event',
             'category': 'example_payload',
+            'event': 'test_event',
             'message_id': 'message_id',
         }, separators=(',', ':'))