diff --git a/lemur/dns_providers/service.py b/lemur/dns_providers/service.py
index 64cd6782..b79967b8 100644
--- a/lemur/dns_providers/service.py
+++ b/lemur/dns_providers/service.py
@@ -1,5 +1,3 @@
-import json
-
 from flask import current_app
 from lemur import database
 from lemur.dns_providers.models import DnsProviders
diff --git a/lemur/dns_providers/views.py b/lemur/dns_providers/views.py
index 4eff0ece..13c71faa 100644
--- a/lemur/dns_providers/views.py
+++ b/lemur/dns_providers/views.py
@@ -78,7 +78,6 @@ class DnsProvidersList(AuthenticatedResource):
         args['user'] = g.user
         return service.render(args)
 
-
     @admin_permission.require(http_exception=403)
     def delete(self, dns_provider_id):
         service.delete(dns_provider_id)
diff --git a/lemur/plugins/lemur_acme/tests/test_acme.py b/lemur/plugins/lemur_acme/tests/test_acme.py
index 7aeef238..938d3144 100644
--- a/lemur/plugins/lemur_acme/tests/test_acme.py
+++ b/lemur/plugins/lemur_acme/tests/test_acme.py
@@ -1,9 +1,6 @@
 import unittest
 
-from acme import challenges
-
-from lemur.plugins.lemur_acme import plugin, route53, cloudflare
-from lemur.plugins.base import plugins
+from lemur.plugins.lemur_acme import plugin
 from mock import MagicMock, Mock, patch
 
 
@@ -116,4 +113,3 @@ class TestAcme(unittest.TestCase):
         result_client, result_registration = plugin.setup_acme_client(mock_authority)
         assert result_client
         assert result_registration
-
diff --git a/lemur/tests/test_certificates.py b/lemur/tests/test_certificates.py
index 68082f4c..98283a9d 100644
--- a/lemur/tests/test_certificates.py
+++ b/lemur/tests/test_certificates.py
@@ -153,7 +153,7 @@ def test_certificate_input_schema(client, authority):
         'description': 'testtestest',
         'validityEnd': arrow.get(2016, 11, 9).isoformat(),
         'validityStart': arrow.get(2015, 11, 9).isoformat(),
-        'dns_provider': None,
+        'dnsProvider': None,
     }
 
     data, errors = CertificateInputSchema().load(input_data)
@@ -194,7 +194,7 @@ def test_certificate_input_with_extensions(client, authority):
                 ]
             }
         },
-        'dns_provider': None,
+        'dnsProvider': None,
     }
 
     data, errors = CertificateInputSchema().load(input_data)
@@ -209,7 +209,7 @@ def test_certificate_out_of_range_date(client, authority):
         'authority': {'id': authority.id},
         'description': 'testtestest',
         'validityYears': 100,
-        'dns_provider': None,
+        'dnsProvider': None,
     }
 
     data, errors = CertificateInputSchema().load(input_data)
@@ -234,7 +234,7 @@ def test_certificate_valid_years(client, authority):
         'authority': {'id': authority.id},
         'description': 'testtestest',
         'validityYears': 1,
-        'dns_provider': None,
+        'dnsProvider': None,
     }
 
     data, errors = CertificateInputSchema().load(input_data)
@@ -250,7 +250,7 @@ def test_certificate_valid_dates(client, authority):
         'description': 'testtestest',
         'validityStart': '2020-01-01T00:00:00',
         'validityEnd': '2020-01-01T00:00:01',
-        'dns_provider': None,
+        'dnsProvider': None,
     }
 
     data, errors = CertificateInputSchema().load(input_data)
@@ -267,7 +267,7 @@ def test_certificate_cn_admin(client, authority, logged_in_admin):
         'description': 'testtestest',
         'validityStart': '2020-01-01T00:00:00',
         'validityEnd': '2020-01-01T00:00:01',
-        'dns_provider': None,
+        'dnsProvider': None,
     }
 
     data, errors = CertificateInputSchema().load(input_data)
@@ -292,7 +292,7 @@ def test_certificate_allowed_names(client, authority, session, logged_in_user):
                 ]
             }
         },
-        'dns_provider': None,
+        'dnsProvider': None,
     }
 
     data, errors = CertificateInputSchema().load(input_data)
@@ -313,7 +313,7 @@ def test_certificate_incative_authority(client, authority, session, logged_in_us
         'description': 'testtestest',
         'validityStart': '2020-01-01T00:00:00',
         'validityEnd': '2020-01-01T00:00:01',
-        'dns_provider': None,
+        'dnsProvider': None,
     }
 
     data, errors = CertificateInputSchema().load(input_data)
@@ -338,7 +338,7 @@ def test_certificate_disallowed_names(client, authority, session, logged_in_user
                 ]
             }
         },
-        'dns_provider': None,
+        'dnsProvider': None,
     }
 
     data, errors = CertificateInputSchema().load(input_data)
@@ -357,7 +357,7 @@ def test_certificate_sensitive_name(client, authority, session, logged_in_user):
         'description': 'testtestest',
         'validityStart': '2020-01-01T00:00:00',
         'validityEnd': '2020-01-01T00:00:01',
-        'dns_provider': None,
+        'dnsProvider': None,
     }
     session.add(Domain(name='sensitive.example.com', sensitive=True))