diff --git a/openflexure_microscope/api/app.py b/openflexure_microscope/api/app.py
index 521776e2..3e8a8209 100644
--- a/openflexure_microscope/api/app.py
+++ b/openflexure_microscope/api/app.py
@@ -8,7 +8,7 @@ import logging, logging.handlers
 import os
 import pkg_resources
 
-from flask import Flask, jsonify, send_file
+from flask import Flask, send_file
 
 from datetime import datetime
 
@@ -129,7 +129,7 @@ def routes():
     """
     List of all connected API routes
     """
-    return jsonify(list_routes(app))
+    return list_routes(app)
 
 
 @app.route("/log")
diff --git a/openflexure_microscope/api/default_extensions/autofocus.py b/openflexure_microscope/api/default_extensions/autofocus.py
index 0b3f752b..eb5c294f 100644
--- a/openflexure_microscope/api/default_extensions/autofocus.py
+++ b/openflexure_microscope/api/default_extensions/autofocus.py
@@ -3,7 +3,7 @@ from labthings.server.extensions import BaseExtension
 from labthings.server.view import View
 from labthings.server.decorators import ThingAction, ThingProperty, marshal_task
 
-from openflexure_microscope.devel import JsonResponse, request, jsonify, taskify, abort
+from openflexure_microscope.devel import JsonResponse, request, taskify, abort
 from openflexure_microscope.utilities import set_properties
 
 import time
@@ -309,7 +309,7 @@ class MeasureSharpnessAPI(View):
         if not microscope:
             abort(503, "No microscope connected. Unable to measure sharpness.")
 
-        return jsonify({"sharpness": measure_sharpness(microscope)})
+        return {"sharpness": measure_sharpness(microscope)}
 
 
 @ThingAction
diff --git a/openflexure_microscope/api/default_extensions/zip_builder.py b/openflexure_microscope/api/default_extensions/zip_builder.py
index b32eb995..1b1b53d1 100644
--- a/openflexure_microscope/api/default_extensions/zip_builder.py
+++ b/openflexure_microscope/api/default_extensions/zip_builder.py
@@ -1,7 +1,6 @@
 from openflexure_microscope.devel import (
     JsonResponse,
     request,
-    jsonify,
     taskify,
     update_task_progress,
 )
diff --git a/openflexure_microscope/api/example_extensions/ev_gui.py b/openflexure_microscope/api/example_extensions/ev_gui.py
index 70089ccf..28cae963 100644
--- a/openflexure_microscope/api/example_extensions/ev_gui.py
+++ b/openflexure_microscope/api/example_extensions/ev_gui.py
@@ -6,8 +6,6 @@ from openflexure_microscope.api.utilities.gui import build_gui
 
 import logging
 
-from flask import jsonify
-
 # Some value that will change over time
 # Here, we add 1 to it every time a GET request is made
 val_int = 0
@@ -81,7 +79,7 @@ class TestAPIView(View):
     def get(self):
         global val_int
         val_int += 1
-        return jsonify({"val": True})
+        return {"val": True}
 
 
 @ThingAction
@@ -89,7 +87,7 @@ class TestDoAPIView(View):
     def post(self):
         global val_int
         val_int += 1
-        return jsonify({"val": True})
+        return {"val": True}
 
 
 # Using the dynamic form
diff --git a/openflexure_microscope/api/v2/views/actions/camera.py b/openflexure_microscope/api/v2/views/actions/camera.py
index 62f777d7..c9d42e49 100644
--- a/openflexure_microscope/api/v2/views/actions/camera.py
+++ b/openflexure_microscope/api/v2/views/actions/camera.py
@@ -17,7 +17,7 @@ from openflexure_microscope.api.v2.views.captures import capture_schema
 
 import logging
 import io
-from flask import jsonify, request, abort, url_for, redirect, send_file
+from flask import request, abort, url_for, redirect, send_file
 
 
 @ThingAction
@@ -164,7 +164,7 @@ class GPUPreviewStartAPI(View):
         microscope.camera.start_preview(fullscreen=fullscreen, window=window)
 
         # TODO: Make schema for microscope state
-        return jsonify(microscope.state)
+        return microscope.state
 
 
 @ThingAction
@@ -176,4 +176,4 @@ class GPUPreviewStopAPI(View):
         microscope = find_component("org.openflexure.microscope")
         microscope.camera.stop_preview()
         # TODO: Make schema for microscope state
-        return jsonify(microscope.state)
+        return microscope.state
diff --git a/openflexure_microscope/api/v2/views/actions/stage.py b/openflexure_microscope/api/v2/views/actions/stage.py
index 5cf4059e..265e7437 100644
--- a/openflexure_microscope/api/v2/views/actions/stage.py
+++ b/openflexure_microscope/api/v2/views/actions/stage.py
@@ -6,7 +6,7 @@ from labthings.server import fields
 
 from openflexure_microscope.utilities import axes_to_array, filter_dict
 
-from flask import Blueprint, jsonify, request
+from flask import Blueprint, request
 
 import logging
 
@@ -53,7 +53,7 @@ class MoveStageAPI(View):
             logging.warning("Unable to move. No stage found.")
 
         # TODO: Make schema for microscope state
-        return jsonify(microscope.state["stage"]["position"])
+        return microscope.state["stage"]["position"]
 
 
 @ThingAction
@@ -67,4 +67,4 @@ class ZeroStageAPI(View):
         microscope.stage.zero_position()
 
         # TODO: Make schema for microscope state
-        return jsonify(microscope.state["stage"])
+        return microscope.state["stage"]
diff --git a/openflexure_microscope/api/v2/views/captures.py b/openflexure_microscope/api/v2/views/captures.py
index 2deb72b6..abe7e895 100644
--- a/openflexure_microscope/api/v2/views/captures.py
+++ b/openflexure_microscope/api/v2/views/captures.py
@@ -1,5 +1,5 @@
 import logging
-from flask import abort, request, redirect, url_for, send_file, jsonify
+from flask import abort, request, redirect, url_for, send_file
 
 from openflexure_microscope.api.utilities import get_bool, JsonResponse
 
@@ -185,7 +185,7 @@ class CaptureTags(View):
         if not capture_obj:
             return abort(404)  # 404 Not Found
 
-        return jsonify(capture_obj.tags)
+        return capture_obj.tags
 
     def put(self, id):
         """
@@ -205,7 +205,7 @@ class CaptureTags(View):
 
         capture_obj.put_tags(data_dict)
 
-        return jsonify(capture_obj.tags)
+        return capture_obj.tags
 
     def delete(self, id):
         """
@@ -225,7 +225,7 @@ class CaptureTags(View):
         for tag in data_dict:
             capture_obj.delete_tag(str(tag))
 
-        return jsonify(capture_obj.tags)
+        return capture_obj.tags
 
 
 @Tag("captures")
@@ -240,7 +240,7 @@ class CaptureAnnotations(View):
         if not capture_obj:
             return abort(404)  # 404 Not Found
 
-        return jsonify(capture_obj.annotations)
+        return capture_obj.annotations
 
     def put(self, id):
         """
@@ -260,4 +260,4 @@ class CaptureAnnotations(View):
 
         capture_obj.put_annotations(data_dict)
 
-        return jsonify(capture_obj.annotations)
+        return capture_obj.annotations
diff --git a/openflexure_microscope/api/v2/views/instrument.py b/openflexure_microscope/api/v2/views/instrument.py
index 633d73ff..f3c6f67f 100644
--- a/openflexure_microscope/api/v2/views/instrument.py
+++ b/openflexure_microscope/api/v2/views/instrument.py
@@ -7,7 +7,7 @@ from labthings.server.view import View
 
 from labthings.server.decorators import ThingProperty, Tag, doc_response
 
-from flask import jsonify, request, abort
+from flask import request, abort
 import logging
 
 
@@ -18,7 +18,7 @@ class SettingsProperty(View):
         Current microscope settings, including camera and stage
         """
         microscope = find_component("org.openflexure.microscope")
-        return jsonify(microscope.read_settings())
+        return microscope.read_settings()
 
     def put(self):
         """
@@ -51,7 +51,7 @@ class NestedSettingsProperty(View):
         except KeyError:
             return abort(404)
 
-        return jsonify(value)
+        return value
 
     @doc_response(404, description="Settings key cannot be found")
     def put(self, route):
@@ -78,7 +78,7 @@ class StateProperty(View):
         Show current read-only state of the microscope
         """
         microscope = find_component("org.openflexure.microscope")
-        return jsonify(microscope.state)
+        return microscope.state
 
 
 @Tag("properties")
@@ -96,7 +96,7 @@ class NestedStateProperty(View):
         except KeyError:
             return abort(404)
 
-        return jsonify(value)
+        return value
 
 
 @ThingProperty
@@ -106,7 +106,7 @@ class ConfigurationProperty(View):
         Show current read-only state of the microscope
         """
         microscope = find_component("org.openflexure.microscope")
-        return jsonify(microscope.configuration)
+        return microscope.configuration
 
 
 @Tag("properties")
@@ -124,4 +124,4 @@ class NestedConfigurationProperty(View):
         except KeyError:
             return abort(404)
 
-        return jsonify(value)
+        return value
diff --git a/openflexure_microscope/config.py b/openflexure_microscope/config.py
index 3cd36f72..6657de24 100644
--- a/openflexure_microscope/config.py
+++ b/openflexure_microscope/config.py
@@ -8,6 +8,8 @@ from uuid import UUID
 import numpy as np
 from fractions import Fraction
 
+from labthings.server.representations import LabThingsJSONEncoder
+
 from .paths import (
     SETTINGS_FILE_PATH,
     DEFAULT_SETTINGS_FILE_PATH,
@@ -77,7 +79,7 @@ class OpenflexureSettingsFile:
         return settings
 
 
-class JSONEncoder(flask.json.JSONEncoder):
+class JSONEncoder(LabThingsJSONEncoder):
     """
     A custom JSON encoder, with type conversions for PiCamera fractions, Numpy integers, and Numpy arrays
     """
@@ -100,7 +102,7 @@ class JSONEncoder(flask.json.JSONEncoder):
         else:
             # call base class implementation which takes care of
             # raising exceptions for unsupported types
-            return flask.json.JSONEncoder.default(self, o)
+            return LabThingsJSONEncoder.default(self, o)
 
 
 # HANDLE BASIC LOADING AND SAVING OF SETTINGS FILES
diff --git a/openflexure_microscope/devel/__init__.py b/openflexure_microscope/devel/__init__.py
index 6ec0ebe4..d777ea1a 100644
--- a/openflexure_microscope/devel/__init__.py
+++ b/openflexure_microscope/devel/__init__.py
@@ -17,4 +17,4 @@ from labthings.core.tasks import (
 
 
 # Flask things
-from flask import abort, escape, jsonify, Response, request
+from flask import abort, escape, Response, request
diff --git a/poetry.lock b/poetry.lock
index 9188ea77..e0436146 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -95,12 +95,12 @@ description = "Python package for providing Mozilla's CA Bundle."
 name = "certifi"
 optional = false
 python-versions = "*"
-version = "2019.11.28"
+version = "2020.4.5.1"
 
 [[package]]
 category = "main"
 description = "Foreign Function Interface for Python calling C code."
-marker = "sys_platform == \"win32\" and platform_python_implementation == \"CPython\""
+marker = "platform_python_implementation == \"CPython\" and sys_platform == \"win32\""
 name = "cffi"
 optional = false
 python-versions = "*"
@@ -148,7 +148,7 @@ description = "A simple framework for building complex web applications."
 name = "flask"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "1.1.1"
+version = "1.1.2"
 
 [package.dependencies]
 Jinja2 = ">=2.10.1"
@@ -178,18 +178,20 @@ category = "main"
 description = "Coroutine-based network library"
 name = "gevent"
 optional = false
-python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*"
-version = "1.4.0"
+python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*"
+version = "1.5.0"
 
 [package.dependencies]
-cffi = ">=1.11.5"
+cffi = ">=1.12.2"
 greenlet = ">=0.4.14"
 
 [package.extras]
-dnspython = ["dnspython", "idna"]
-doc = ["repoze.sphinx.autointerface"]
+dnspython = ["dnspython (>=1.16.0)", "idna"]
+docs = ["repoze.sphinx.autointerface", "sphinxcontrib-programoutput"]
 events = ["zope.event", "zope.interface"]
-test = ["zope.interface", "zope.event", "requests", "objgraph", "psutil", "futures", "mock", "coverage (>=5.0a3)", "coveralls (>=1.0)"]
+monitor = ["psutil (>=5.6.1)", "psutil (5.6.3)"]
+recommended = ["dnspython (>=1.16.0)", "idna", "zope.event", "zope.interface", "cffi (>=1.12.2)", "psutil (>=5.6.1)", "psutil (5.6.3)"]
+test = ["dnspython (>=1.16.0)", "idna", "zope.event", "zope.interface", "requests", "objgraph", "cffi (>=1.12.2)", "psutil (>=5.6.1)", "psutil (5.6.3)", "futures", "mock", "coverage (<5.0)", "coveralls (>=1.7.0)"]
 
 [[package]]
 category = "main"
@@ -263,7 +265,7 @@ description = "A very fast and expressive template engine."
 name = "jinja2"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "2.11.1"
+version = "2.11.2"
 
 [package.dependencies]
 MarkupSafe = ">=0.23"
@@ -273,21 +275,27 @@ i18n = ["Babel (>=0.8)"]
 
 [[package]]
 category = "main"
-description = "Python implementation of LabThings, based on the Flask microframework"
+description = ""
+develop = true
 name = "labthings"
 optional = false
-python-versions = ">=3.6,<4.0"
+python-versions = "^3.6"
 version = "0.4.0"
 
 [package.dependencies]
-Flask = ">=1.1.1,<2.0.0"
-apispec = ">=3.2.0,<4.0.0"
-flask-cors = ">=3.0.8,<4.0.0"
-gevent = ">=1.4.0,<2.0.0"
-gevent-websocket = ">=0.10.1,<0.11.0"
-marshmallow = ">=3.4.0,<4.0.0"
-webargs = ">=5.5.3,<6.0.0"
-zeroconf = ">=0.24.5,<0.25.0"
+Flask = "^1.1.1"
+apispec = "^3.2.0"
+flask-cors = "^3.0.8"
+gevent = ">=1.4,<21.0"
+gevent-websocket = "^0.10.1"
+marshmallow = "^3.4.0"
+webargs = "^6.0.0"
+zeroconf = ">=0.24.5,<0.26.0"
+
+[package.source]
+reference = ""
+type = "directory"
+url = "../python-labthings"
 
 [[package]]
 category = "dev"
@@ -398,7 +406,7 @@ enum = ["enum34"]
 [[package]]
 category = "main"
 description = "C parser in Python"
-marker = "sys_platform == \"win32\" and platform_python_implementation == \"CPython\""
+marker = "platform_python_implementation == \"CPython\" and sys_platform == \"win32\""
 name = "pycparser"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
@@ -432,7 +440,7 @@ description = "Python parsing module"
 name = "pyparsing"
 optional = false
 python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
-version = "2.4.6"
+version = "2.4.7"
 
 [[package]]
 category = "main"
@@ -506,14 +514,6 @@ version = "1.3.0"
 [package.dependencies]
 numpy = ">=1.13.3"
 
-[[package]]
-category = "main"
-description = "Simple, fast, extensible JSON encoder/decoder for Python"
-name = "simplejson"
-optional = false
-python-versions = ">=2.5, !=3.0.*, !=3.1.*, !=3.2.*"
-version = "3.17.0"
-
 [[package]]
 category = "main"
 description = "Python 2 and 3 compatibility utilities"
@@ -536,13 +536,13 @@ description = "Python documentation generator"
 name = "sphinx"
 optional = false
 python-versions = ">=3.5"
-version = "2.4.4"
+version = "3.0.2"
 
 [package.dependencies]
 Jinja2 = ">=2.3"
 Pygments = ">=2.0"
 alabaster = ">=0.7,<0.8"
-babel = ">=1.3,<2.0 || >2.0"
+babel = ">=1.3"
 colorama = ">=0.3.5"
 docutils = ">=0.12"
 imagesize = "*"
@@ -559,7 +559,8 @@ sphinxcontrib-serializinghtml = "*"
 
 [package.extras]
 docs = ["sphinxcontrib-websupport"]
-test = ["pytest (<5.3.3)", "pytest-cov", "html5lib", "flake8 (>=3.5.0)", "flake8-import-order", "mypy (>=0.761)", "docutils-stubs"]
+lint = ["flake8 (>=3.5.0)", "flake8-import-order", "mypy (>=0.770)", "docutils-stubs"]
+test = ["pytest", "pytest-cov", "html5lib", "typed-ast", "cython"]
 
 [[package]]
 category = "dev"
@@ -667,11 +668,11 @@ description = "HTTP library with thread-safe connection pooling, file post, and
 name = "urllib3"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, <4"
-version = "1.25.8"
+version = "1.25.9"
 
 [package.extras]
 brotli = ["brotlipy (>=0.6.0)"]
-secure = ["pyOpenSSL (>=0.14)", "cryptography (>=1.3.4)", "idna (>=2.0.0)", "certifi", "ipaddress"]
+secure = ["certifi", "cryptography (>=1.3.4)", "idna (>=2.0.0)", "pyOpenSSL (>=0.14)", "ipaddress"]
 socks = ["PySocks (>=1.5.6,<1.5.7 || >1.5.7,<2.0)"]
 
 [[package]]
@@ -679,19 +680,18 @@ category = "main"
 description = "Declarative parsing and validation of HTTP request objects, with built-in support for popular web frameworks, including Flask, Django, Bottle, Tornado, Pyramid, webapp2, Falcon, and aiohttp."
 name = "webargs"
 optional = false
-python-versions = "*"
-version = "5.5.3"
+python-versions = ">=3.5"
+version = "6.0.0"
 
 [package.dependencies]
 marshmallow = ">=2.15.2"
-simplejson = ">=2.1.0"
 
 [package.extras]
-dev = ["pytest", "mock", "webtest (2.0.33)", "Flask (>=0.12.2)", "Django (>=1.11.16)", "bottle (>=0.12.13)", "tornado (>=4.5.2)", "pyramid (>=1.9.1)", "webapp2 (>=3.0.0b1)", "falcon (>=1.4.0,<2.0)", "flake8 (3.7.8)", "pre-commit (>=1.17,<2.0)", "tox", "webtest-aiohttp (2.0.0)", "pytest-aiohttp (>=0.3.0)", "aiohttp (>=3.0.0)", "mypy (0.730)", "flake8-bugbear (19.8.0)"]
-docs = ["Sphinx (2.2.0)", "sphinx-issues (1.2.0)", "sphinx-typlog-theme (0.7.3)", "Flask (>=0.12.2)", "Django (>=1.11.16)", "bottle (>=0.12.13)", "tornado (>=4.5.2)", "pyramid (>=1.9.1)", "webapp2 (>=3.0.0b1)", "falcon (>=1.4.0,<2.0)", "aiohttp (>=3.0.0)"]
-frameworks = ["Flask (>=0.12.2)", "Django (>=1.11.16)", "bottle (>=0.12.13)", "tornado (>=4.5.2)", "pyramid (>=1.9.1)", "webapp2 (>=3.0.0b1)", "falcon (>=1.4.0,<2.0)", "aiohttp (>=3.0.0)"]
-lint = ["flake8 (3.7.8)", "pre-commit (>=1.17,<2.0)", "mypy (0.730)", "flake8-bugbear (19.8.0)"]
-tests = ["pytest", "mock", "webtest (2.0.33)", "Flask (>=0.12.2)", "Django (>=1.11.16)", "bottle (>=0.12.13)", "tornado (>=4.5.2)", "pyramid (>=1.9.1)", "webapp2 (>=3.0.0b1)", "falcon (>=1.4.0,<2.0)", "webtest-aiohttp (2.0.0)", "pytest-aiohttp (>=0.3.0)", "aiohttp (>=3.0.0)"]
+dev = ["pytest", "webtest (2.0.34)", "webtest-aiohttp (2.0.0)", "pytest-aiohttp (>=0.3.0)", "Flask (>=0.12.2)", "Django (>=1.11.16)", "bottle (>=0.12.13)", "tornado (>=4.5.2)", "pyramid (>=1.9.1)", "webapp2 (>=3.0.0b1)", "falcon (>=2.0.0)", "aiohttp (>=3.0.0)", "mypy (0.761)", "flake8 (3.7.9)", "flake8-bugbear (20.1.4)", "pre-commit (>=1.20,<3.0)", "tox", "mock"]
+docs = ["Sphinx (2.4.3)", "sphinx-issues (1.2.0)", "sphinx-typlog-theme (0.8.0)", "Flask (>=0.12.2)", "Django (>=1.11.16)", "bottle (>=0.12.13)", "tornado (>=4.5.2)", "pyramid (>=1.9.1)", "webapp2 (>=3.0.0b1)", "falcon (>=2.0.0)", "aiohttp (>=3.0.0)"]
+frameworks = ["Flask (>=0.12.2)", "Django (>=1.11.16)", "bottle (>=0.12.13)", "tornado (>=4.5.2)", "pyramid (>=1.9.1)", "webapp2 (>=3.0.0b1)", "falcon (>=2.0.0)", "aiohttp (>=3.0.0)"]
+lint = ["mypy (0.761)", "flake8 (3.7.9)", "flake8-bugbear (20.1.4)", "pre-commit (>=1.20,<3.0)"]
+tests = ["pytest", "webtest (2.0.34)", "webtest-aiohttp (2.0.0)", "pytest-aiohttp (>=0.3.0)", "Flask (>=0.12.2)", "Django (>=1.11.16)", "bottle (>=0.12.13)", "tornado (>=4.5.2)", "pyramid (>=1.9.1)", "webapp2 (>=3.0.0b1)", "falcon (>=2.0.0)", "aiohttp (>=3.0.0)", "mock"]
 
 [[package]]
 category = "main"
@@ -699,10 +699,10 @@ description = "The comprehensive WSGI web application library."
 name = "werkzeug"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "1.0.0"
+version = "1.0.1"
 
 [package.extras]
-dev = ["pytest", "coverage", "tox", "sphinx", "pallets-sphinx-themes", "sphinx-issues"]
+dev = ["pytest", "pytest-timeout", "coverage", "tox", "sphinx", "pallets-sphinx-themes", "sphinx-issues"]
 watchdog = ["watchdog"]
 
 [[package]]
@@ -728,7 +728,7 @@ ifaddr = "*"
 rpi = ["picamera", "RPi.GPIO"]
 
 [metadata]
-content-hash = "f7bb806f267f9f38aedfe6bb4ef6d23deef9df991c7117bd58f8c0e83c64b2b4"
+content-hash = "c2880161ac670399b891990f9d7b476165d97568872a2073f68c05efa5d0a009"
 python-versions = "^3.6"
 
 [metadata.files]
@@ -761,8 +761,8 @@ black = [
     {file = "black-18.9b0.tar.gz", hash = "sha256:e030a9a28f542debc08acceb273f228ac422798e5215ba2a791a6ddeaaca22a5"},
 ]
 certifi = [
-    {file = "certifi-2019.11.28-py2.py3-none-any.whl", hash = "sha256:017c25db2a153ce562900032d5bc68e9f191e44e9a0f762f373977de9df1fbb3"},
-    {file = "certifi-2019.11.28.tar.gz", hash = "sha256:25b64c7da4cd7479594d035c08c2d809eb4aab3a26e5a990ea98cc450c320f1f"},
+    {file = "certifi-2020.4.5.1-py2.py3-none-any.whl", hash = "sha256:1d987a998c75633c40847cc966fcf5904906c920a7f17ef374f5aa4282abd304"},
+    {file = "certifi-2020.4.5.1.tar.gz", hash = "sha256:51fcb31174be6e6664c5f69e3e1691a2d72a1a12e90f872cbdb1567eb47b6519"},
 ]
 cffi = [
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 sphinx = [
-    {file = "Sphinx-2.4.4-py3-none-any.whl", hash = "sha256:fc312670b56cb54920d6cc2ced455a22a547910de10b3142276495ced49231cb"},
-    {file = "Sphinx-2.4.4.tar.gz", hash = "sha256:b4c750d546ab6d7e05bdff6ac24db8ae3e8b8253a3569b754e445110a0a12b66"},
+    {file = "Sphinx-3.0.2-py3-none-any.whl", hash = "sha256:3145d87d0962366d4c5264c39094eae3f5788d01d4b1a12294051bfe4271d91b"},
+    {file = "Sphinx-3.0.2.tar.gz", hash = "sha256:d7c6e72c6aa229caf96af82f60a0d286a1521d42496c226fe37f5a75dcfe2941"},
 ]
 sphinxcontrib-applehelp = [
     {file = "sphinxcontrib-applehelp-1.0.2.tar.gz", hash = "sha256:a072735ec80e7675e3f432fcae8610ecf509c5f1869d17e2eecff44389cdbc58"},
@@ -1244,17 +1211,16 @@ typed-ast = [
     {file = "typed_ast-1.4.1.tar.gz", hash = "sha256:8c8aaad94455178e3187ab22c8b01a3837f8ee50e09cf31f1ba129eb293ec30b"},
 ]
 urllib3 = [
-    {file = "urllib3-1.25.8-py2.py3-none-any.whl", hash = "sha256:2f3db8b19923a873b3e5256dc9c2dedfa883e33d87c690d9c7913e1f40673cdc"},
-    {file = "urllib3-1.25.8.tar.gz", hash = "sha256:87716c2d2a7121198ebcb7ce7cccf6ce5e9ba539041cfbaeecfb641dc0bf6acc"},
+    {file = "urllib3-1.25.9-py2.py3-none-any.whl", hash = "sha256:88206b0eb87e6d677d424843ac5209e3fb9d0190d0ee169599165ec25e9d9115"},
+    {file = "urllib3-1.25.9.tar.gz", hash = "sha256:3018294ebefce6572a474f0604c2021e33b3fd8006ecd11d62107a5d2a963527"},
 ]
 webargs = [
-    {file = "webargs-5.5.3-py2-none-any.whl", hash = "sha256:fc81c9f9d391acfbce406a319217319fd8b2fd862f7fdb5319ad06944f36ed25"},
-    {file = "webargs-5.5.3-py3-none-any.whl", hash = "sha256:4f04918864c7602886335d8099f9b8960ee698b6b914f022736ed50be6b71235"},
-    {file = "webargs-5.5.3.tar.gz", hash = "sha256:871642a2e0c62f21d5b78f357750ac7a87e6bc734c972f633aa5fb6204fbf29a"},
+    {file = "webargs-6.0.0-py2.py3-none-any.whl", hash = "sha256:dfe01cd3711cee9a3651bfd5ca67770ace4a6f35f3cae583aa8400bbf7706bb4"},
+    {file = "webargs-6.0.0.tar.gz", hash = "sha256:d66a056b3a40c5a3774a650fd349db5970cd91fa8f04ac50d00582c949b45b26"},
 ]
 werkzeug = [
-    {file = "Werkzeug-1.0.0-py2.py3-none-any.whl", hash = "sha256:6dc65cf9091cf750012f56f2cad759fa9e879f511b5ff8685e456b4e3bf90d16"},
-    {file = "Werkzeug-1.0.0.tar.gz", hash = "sha256:169ba8a33788476292d04186ab33b01d6add475033dfc07215e6d219cc077096"},
+    {file = "Werkzeug-1.0.1-py2.py3-none-any.whl", hash = "sha256:2de2a5db0baeae7b2d2664949077c2ac63fbd16d98da0ff71837f7d1dea3fd43"},
+    {file = "Werkzeug-1.0.1.tar.gz", hash = "sha256:6c80b1e5ad3665290ea39320b91e1be1e0d5f60652b964a3070216de83d2e47c"},
 ]
 wrapt = [
     {file = "wrapt-1.11.2.tar.gz", hash = "sha256:565a021fd19419476b9362b05eeaa094178de64f8361e44468f9e9d7843901e1"},
diff --git a/pyproject.toml b/pyproject.toml
index 643696f0..543b79f3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,7 +25,7 @@ license = "GPL-3.0"
 [tool.poetry.dependencies]
 python = "^3.6"
 Flask = "^1.0"
-numpy = "^1.17.0"
+numpy = "1.18.2"
 Pillow = "^5.4"
 scipy = "1.3.0" # Exact version until we can guarantee a wheel
 
@@ -36,7 +36,7 @@ pyserial = "^3.4" # Used for sangaboard (basic_serial_instrument) until we move
 python-dateutil = "^2.8"
 psutil = "^5.6.7" # Autostorage extension
 opencv-python-headless = "4.1.0.25"
-labthings = "0.4.0"
+labthings = {path = "../python-labthings"}
 
 [tool.poetry.extras]
 rpi = ["picamera", "RPi.GPIO"]