diff --git a/app/authentication/auth.py b/app/authentication/auth.py
index f878ccda7..8abe2a067 100644
--- a/app/authentication/auth.py
+++ b/app/authentication/auth.py
@@ -113,7 +113,7 @@ def __get_token_issuer(auth_token):
         client = get_token_issuer(auth_token)
     except TokenIssuerError:
         raise AuthError("Invalid token: iss field not provided", 403)
-    except TokenDecodeError as e:
+    except TokenDecodeError:
         raise AuthError("Invalid token: signature, api token is not valid", 403)
     return client
 
@@ -123,5 +123,5 @@ def handle_admin_key(auth_token, secret):
         decode_jwt_token(auth_token, secret)
     except TokenExpiredError:
         raise AuthError("Invalid token: expired, check that your system clock is accurate", 403)
-    except TokenDecodeError as e:
+    except TokenDecodeError:
         raise AuthError("Invalid token: signature, api token is not valid", 403)
diff --git a/app/celery/process_ses_receipts_tasks.py b/app/celery/process_ses_receipts_tasks.py
index d0279eb77..ad88fcc3c 100644
--- a/app/celery/process_ses_receipts_tasks.py
+++ b/app/celery/process_ses_receipts_tasks.py
@@ -14,6 +14,6 @@ def process_ses_results(self, response):
         errors = process_ses_response(response)
         if errors:
             current_app.logger.error(errors)
-    except Exception as exc:
+    except Exception:
         current_app.logger.exception('Error processing SES results')
         self.retry(queue=QueueNames.RETRY)
diff --git a/app/celery/provider_tasks.py b/app/celery/provider_tasks.py
index 113e79559..aec055246 100644
--- a/app/celery/provider_tasks.py
+++ b/app/celery/provider_tasks.py
@@ -21,7 +21,7 @@ def deliver_sms(self, notification_id):
         if not notification:
             raise NoResultFound()
         send_to_providers.send_sms_to_provider(notification)
-    except Exception as e:
+    except Exception:
         try:
             current_app.logger.exception(
                 "SMS notification delivery for id: {} failed".format(notification_id)
@@ -46,7 +46,7 @@ def deliver_email(self, notification_id):
     except InvalidEmailError as e:
         current_app.logger.exception(e)
         update_notification_status_by_id(notification_id, 'technical-failure')
-    except Exception as e:
+    except Exception:
         try:
             current_app.logger.exception(
                 "RETRY: Email notification {} failed".format(notification_id)
diff --git a/app/clients/email/__init__.py b/app/clients/email/__init__.py
index 15f250496..b5ea93941 100644
--- a/app/clients/email/__init__.py
+++ b/app/clients/email/__init__.py
@@ -14,7 +14,7 @@ class EmailClient(Client):
     '''
 
     def send_email(self, *args, **kwargs):
-        raise NotImplemented('TODO Need to implement.')
+        raise NotImplementedError('TODO Need to implement.')
 
     def get_name(self):
-        raise NotImplemented('TODO Need to implement.')
+        raise NotImplementedError('TODO Need to implement.')
diff --git a/app/clients/sms/__init__.py b/app/clients/sms/__init__.py
index e6accdb8a..9a3cb2baf 100644
--- a/app/clients/sms/__init__.py
+++ b/app/clients/sms/__init__.py
@@ -19,7 +19,7 @@ class SmsClient(Client):
     '''
 
     def send_sms(self, *args, **kwargs):
-        raise NotImplemented('TODO Need to implement.')
+        raise NotImplementedError('TODO Need to implement.')
 
     def get_name(self):
-        raise NotImplemented('TODO Need to implement.')
+        raise NotImplementedError('TODO Need to implement.')
diff --git a/app/commands.py b/app/commands.py
index e6e495899..a4244fb33 100644
--- a/app/commands.py
+++ b/app/commands.py
@@ -316,7 +316,7 @@ def replay_service_callbacks(file_name, service_id):
         try:
             notification = Notification.query.filter_by(client_reference=ref.strip()).one()
             notifications.append(notification)
-        except NoResultFound as e:
+        except NoResultFound:
             errors.append("Reference: {} was not found in notifications.".format(ref))
 
     for e in errors:
diff --git a/app/utils.py b/app/utils.py
index 3ceeed2e6..204de6ed5 100644
--- a/app/utils.py
+++ b/app/utils.py
@@ -121,6 +121,6 @@ def escape_special_characters(string):
     for special_character in ('\\', '_', '%', '/'):
         string = string.replace(
             special_character,
-            '\{}'.format(special_character)
+            r'\{}'.format(special_character)
         )
     return string
diff --git a/requirements-app.txt b/requirements-app.txt
index fccb5d8c0..e75740910 100644
--- a/requirements-app.txt
+++ b/requirements-app.txt
@@ -23,9 +23,7 @@ SQLAlchemy==1.2.12
 notifications-python-client==5.2.0
 
 # PaaS
-awscli==1.15.82  # pyup: ignore
 awscli-cwlogs>=1.4,<1.5
-botocore<1.11.0  # pyup: ignore
 
 
 # Putting upgrade on hold due to v1.0.0 using sha512 instead of sha1 by default
diff --git a/requirements.txt b/requirements.txt
index 6a96b0045..37613bb91 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,9 +25,7 @@ SQLAlchemy==1.2.12
 notifications-python-client==5.2.0
 
 # PaaS
-awscli==1.15.82  # pyup: ignore
 awscli-cwlogs>=1.4,<1.5
-botocore<1.11.0  # pyup: ignore
 
 
 # Putting upgrade on hold due to v1.0.0 using sha512 instead of sha1 by default
@@ -38,20 +36,22 @@ git+https://github.com/alphagov/notifications-utils.git@30.5.6#egg=notifications
 git+https://github.com/alphagov/boto.git@2.43.0-patch3#egg=boto==2.43.0-patch3
 
 ## The following requirements were added by pip freeze:
-alembic==1.0.1
+alembic==1.0.2
 amqp==1.4.9
 anyjson==0.3.3
+awscli==1.16.49
 bcrypt==3.1.4
 billiard==3.3.0.23
 bleach==2.1.3
 boto3==1.6.16
+botocore==1.12.39
 certifi==2018.10.15
 chardet==3.0.4
 Click==7.0
 colorama==0.3.9
 docutils==0.14
 Flask-Redis==0.3.0
-future==0.16.0
+future==0.17.1
 greenlet==0.4.15
 html5lib==1.0.1
 idna==2.7
@@ -59,7 +59,7 @@ Jinja2==2.10
 jmespath==0.9.3
 kombu==3.0.37
 Mako==1.0.7
-MarkupSafe==1.0
+MarkupSafe==1.1.0
 mistune==0.8.3
 monotonic==1.5
 orderedset==2.0.1
@@ -67,11 +67,11 @@ phonenumbers==8.9.4
 pyasn1==0.4.4
 pycparser==2.19
 PyPDF2==1.26.0
-python-dateutil==2.7.3
+python-dateutil==2.7.5
 python-editor==1.0.3
 python-json-logger==0.1.8
-pytz==2018.6
-PyYAML==3.13
+pytz==2018.7
+PyYAML==3.12
 redis==2.10.6
 requests==2.20.0
 rsa==3.4.2
@@ -79,6 +79,6 @@ s3transfer==0.1.13
 six==1.11.0
 smartypants==2.0.1
 statsd==3.2.2
-urllib3==1.24
+urllib3==1.24.1
 webencodings==0.5.1
 Werkzeug==0.14.1
diff --git a/requirements_for_test.txt b/requirements_for_test.txt
index e25a44f33..d286b3400 100644
--- a/requirements_for_test.txt
+++ b/requirements_for_test.txt
@@ -1,11 +1,11 @@
 -r requirements.txt
-flake8==3.5.0
-pytest==3.9.3
-moto==1.3.6
+flake8==3.6.0
+pytest==3.10.0
+moto==1.3.7
 pytest-env==0.6.2
 pytest-mock==1.10.0
 pytest-cov==2.6.0
-pytest-xdist==1.23.2
+pytest-xdist==1.24.0
 coveralls==1.5.1
 freezegun==0.3.11
 requests-mock==1.5.2
diff --git a/setup.cfg b/setup.cfg
index 4db8682ef..cd4e3f3e4 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,2 +1,7 @@
 [tool:pytest]
 xfail_strict=true
+
+
+[flake8]
+# W504 line break after binary operator
+extend_ignore=W504