diff --git a/stix2/exceptions.py b/stix2/exceptions.py
index 7e7f39e..9c96e03 100644
--- a/stix2/exceptions.py
+++ b/stix2/exceptions.py
@@ -55,4 +55,4 @@ class VersioningError(STIXError, ValueError):
     """Execption while using the Versioning API"""
 
     def __init__(self, msg):
-        super(VersioningError, self).__init__(msg)
\ No newline at end of file
+        super(VersioningError, self).__init__(msg)
diff --git a/stix2/test/test_versioning.py b/stix2/test/test_versioning.py
index ec51521..b369251 100644
--- a/stix2/test/test_versioning.py
+++ b/stix2/test/test_versioning.py
@@ -66,7 +66,7 @@ def test_versioning_error_invalid_property():
     )
 
     with pytest.raises(stix2.exceptions.VersioningError) as excinfo:
-        campaign_v2 = campaign_v1.new_version(type="threat-actor")
+        campaign_v2 = campaign_v1.new_version(type="threat-actor")   # noqa
 
     str(excinfo.value) == "These properties cannot be changed when making a new version: type"
 
@@ -84,7 +84,7 @@ def test_versioning_error_new_version_of_revoked():
     campaign_v2 = campaign_v1.revoke()
 
     with pytest.raises(stix2.exceptions.VersioningError) as excinfo:
-        campaign_v3 = campaign_v2.new_version(name="barney")
+        campaign_v3 = campaign_v2.new_version(name="barney")   # noqa
 
     str(excinfo.value) == "Cannot create a new version of a revoked object"
 
@@ -102,6 +102,6 @@ def test_versioning_error_revoke_of_revoked():
     campaign_v2 = campaign_v1.revoke()
 
     with pytest.raises(stix2.exceptions.VersioningError) as excinfo:
-        campaign_v3 = campaign_v2.revoke()
+        campaign_v3 = campaign_v2.revoke()   # noqa
 
-    str(excinfo.value) == "Cannot revoke an already revoked object"
\ No newline at end of file
+    str(excinfo.value) == "Cannot revoke an already revoked object"