diff --git a/app/errors.py b/app/errors.py
index 67448e1fb..09ff8d633 100644
--- a/app/errors.py
+++ b/app/errors.py
@@ -111,5 +111,8 @@ def register_errors(blueprint):
     @blueprint.app_errorhandler(500)
     @blueprint.errorhandler(Exception)
     def internal_server_error(e):
+        # if e is a werkzeug InternalServerError then it may wrap the original exception. For more details see:
+        # https://flask.palletsprojects.com/en/1.1.x/errorhandling/?highlight=internalservererror#unhandled-exceptions
+        e = getattr(e, 'original_exception', e)
         current_app.logger.exception(e)
         return jsonify(result='error', message="Internal server error"), 500
diff --git a/requirements-app.txt b/requirements-app.txt
index a87eb2ed8..f628c38e6 100644
--- a/requirements-app.txt
+++ b/requirements-app.txt
@@ -6,19 +6,19 @@ celery==3.1.26.post2 # pyup: <4
 docopt==0.6.2
 Flask-Bcrypt==0.7.1
 flask-marshmallow==0.10.1
-Flask-Migrate==2.4.0
+Flask-Migrate==2.5.2
 git+https://github.com/mitsuhiko/flask-sqlalchemy.git@500e732dd1b975a56ab06a46bd1a20a21e682262#egg=Flask-SQLAlchemy==2.3.2.dev20190108
-Flask==1.0.2
+Flask==1.1.1
 click-datetime==0.2
-eventlet==0.24.1
+eventlet==0.25.1
 gunicorn==19.7.1  # pyup: ignore, >19.8 breaks eventlet patching
 iso8601==0.1.12
-jsonschema==3.0.1
-marshmallow-sqlalchemy==0.16.3
-marshmallow==2.19.2
-psycopg2-binary==2.8.2
+jsonschema==3.0.2
+marshmallow-sqlalchemy==0.17.0
+marshmallow==2.20.2  # pyup: <3 throws errors
+psycopg2-binary==2.8.3
 PyJWT==1.7.1
-SQLAlchemy==1.3.3
+SQLAlchemy==1.3.8
 
 notifications-python-client==5.3.0
 
@@ -29,6 +29,6 @@ awscli-cwlogs>=1.4,<1.5
 # Putting upgrade on hold due to v1.0.0 using sha512 instead of sha1 by default
 itsdangerous==0.24  # pyup: <1.0.0
 
-git+https://github.com/alphagov/notifications-utils.git@33.2.9#egg=notifications-utils==33.2.9
+git+https://github.com/alphagov/notifications-utils.git@34.0.1#egg=notifications-utils==34.0.1
 
 git+https://github.com/alphagov/boto.git@2.43.0-patch3#egg=boto==2.43.0-patch3
diff --git a/requirements.txt b/requirements.txt
index 8d4126a7c..b74c9de73 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,19 +8,19 @@ celery==3.1.26.post2 # pyup: <4
 docopt==0.6.2
 Flask-Bcrypt==0.7.1
 flask-marshmallow==0.10.1
-Flask-Migrate==2.4.0
+Flask-Migrate==2.5.2
 git+https://github.com/mitsuhiko/flask-sqlalchemy.git@500e732dd1b975a56ab06a46bd1a20a21e682262#egg=Flask-SQLAlchemy==2.3.2.dev20190108
-Flask==1.0.2
+Flask==1.1.1
 click-datetime==0.2
-eventlet==0.24.1
+eventlet==0.25.1
 gunicorn==19.7.1  # pyup: ignore, >19.8 breaks eventlet patching
 iso8601==0.1.12
-jsonschema==3.0.1
-marshmallow-sqlalchemy==0.16.3
-marshmallow==2.19.2
-psycopg2-binary==2.8.2
+jsonschema==3.0.2
+marshmallow-sqlalchemy==0.17.0
+marshmallow==2.20.2  # pyup: <3 throws errors
+psycopg2-binary==2.8.3
 PyJWT==1.7.1
-SQLAlchemy==1.3.3
+SQLAlchemy==1.3.8
 
 notifications-python-client==5.3.0
 
@@ -31,27 +31,27 @@ awscli-cwlogs>=1.4,<1.5
 # Putting upgrade on hold due to v1.0.0 using sha512 instead of sha1 by default
 itsdangerous==0.24  # pyup: <1.0.0
 
-git+https://github.com/alphagov/notifications-utils.git@33.2.9#egg=notifications-utils==33.2.9
+git+https://github.com/alphagov/notifications-utils.git@34.0.1#egg=notifications-utils==34.0.1
 
 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==1.0.11
+alembic==1.1.0
 amqp==1.4.9
 anyjson==0.3.3
 attrs==19.1.0
-awscli==1.16.217
+awscli==1.16.231
 bcrypt==3.1.7
 billiard==3.3.0.23
 bleach==3.1.0
 boto3==1.6.16
-botocore==1.12.207
+botocore==1.12.221
 certifi==2019.6.16
 chardet==3.0.4
 Click==7.0
 colorama==0.3.9
 dnspython==1.16.0
-docutils==0.14
+docutils==0.15.2
 flask-redis==0.4.0
 future==0.17.1
 greenlet==0.4.15
@@ -65,7 +65,7 @@ mistune==0.8.4
 monotonic==1.5
 orderedset==2.0.1
 phonenumbers==8.10.13
-pyasn1==0.4.6
+pyasn1==0.4.7
 pycparser==2.19
 PyPDF2==1.26.0
 pyrsistent==0.15.4
@@ -74,7 +74,7 @@ python-editor==1.0.4
 python-json-logger==0.1.11
 pytz==2019.2
 PyYAML==4.2b1
-redis==3.3.7
+redis==3.3.8
 requests==2.22.0
 rsa==3.4.2
 s3transfer==0.2.1