diff --git a/.github/workflows/run-tox-suite.yml b/.github/workflows/run-tox-suite.yml
index d85fee7..d0c046e 100644
--- a/.github/workflows/run-tox-suite.yml
+++ b/.github/workflows/run-tox-suite.yml
@@ -1,5 +1,5 @@
 name: Run Tox Suite
-on: [push, pull_request]
+on: [push, pull_request, workflow_dispatch]
 jobs:
   py310:
     runs-on: ubuntu-latest
diff --git a/biweeklybudget/tests/acceptance/test_plaidlink.py b/biweeklybudget/tests/acceptance/test_plaidlink.py
index 7bcaa3f..efbcaa8 100644
--- a/biweeklybudget/tests/acceptance/test_plaidlink.py
+++ b/biweeklybudget/tests/acceptance/test_plaidlink.py
@@ -133,7 +133,7 @@ def test_03_do_simple_link(self, base_url, selenium):
         sb.send_keys('First Platypus')
         # click on First Platypus Bank
         WebDriverWait(selenium, 10).until(
-            EC.element_to_be_clickable((By.ID, 'aut-First Platypus Bank'))
+            EC.element_to_be_clickable((By.ID, 'aut-ins_109508'))
         ).click()
         # click on the non-OAuth institution
         WebDriverWait(selenium, 10).until(
diff --git a/biweeklybudget/tests/docker_build.py b/biweeklybudget/tests/docker_build.py
index 0321acf..0730459 100755
--- a/biweeklybudget/tests/docker_build.py
+++ b/biweeklybudget/tests/docker_build.py
@@ -486,15 +486,14 @@ def _test_scripts(self, container):
         ]
         for cmd_info in test_cmds:
             logger.debug('Running: %s', cmd_info['cmd'])
-            res = container.exec_run(cmd_info['cmd']).decode().strip()
-            logger.debug('Command output:\n%s', res)
-            if 'output' in cmd_info:
-                if cmd_info['output'] not in res:
-                    raise RuntimeError(
-                        'Expected %s output to include "%s" but it did not' % (
-                            cmd_info['cmd'], cmd_info['output']
-                        )
+            ecode, res = container.exec_run(cmd_info['cmd'])
+            logger.debug('Command exited %d; output:\n%s', ecode, res)
+            if 'output' in cmd_info and cmd_info['output'] not in res.decode():
+                raise RuntimeError(
+                    'Expected %s output to include "%s" but it did not' % (
+                        cmd_info['cmd'], cmd_info['output']
                     )
+                )
         logger.info('script tests SUCCEEDED')
 
     def _run_mysql(self):
@@ -527,11 +526,12 @@ def _run_mysql(self):
         while count < 10:
             count += 1
             logger.info('Creating database...')
-            cmd = '/usr/bin/mysql -uroot -proot -e "CREATE DATABASE budgetfoo;"'
+            cmd = ('/usr/bin/mysql -uroot -proot -h 127.0.0.1 '
+                   '-e "CREATE DATABASE budgetfoo;"')
             logger.debug('Running: %s', cmd)
-            res = cont.exec_run(cmd)
-            logger.debug('Command output:\n%s', res)
-            if 'ERROR' not in res.decode():
+            ecode, res = cont.exec_run(cmd)
+            logger.debug('Command exited %d; output:\n%s', ecode, res)
+            if 'ERROR' not in res.decode() and ecode == 0:
                 logger.info('Database creation appears successful.')
                 break
             logger.warning('Database creation errored; sleep 5s and retry')
@@ -555,17 +555,15 @@ def _build_image(self, tag):
             'quiet': False,
             'nocache': True,
             'rm': True,
-            'stream': True,
             'pull': True,
             'dockerfile': '/Dockerfile',
             'buildargs': {'version': tag},
             'decode': True
         }
         logger.info('Running docker build with args: %s', kwargs)
-        res = self._docker.api.build(**kwargs)
         logger.info('Build running; output:')
         error = None
-        for line in res:
+        for line in self._docker.api.build(**kwargs):
             if 'errorDetail' in line:
                 error = line['errorDetail']
             try:
diff --git a/docs/source/flask_app.rst b/docs/source/flask_app.rst
index 1d4bd1a..4891dc9 100644
--- a/docs/source/flask_app.rst
+++ b/docs/source/flask_app.rst
@@ -9,7 +9,7 @@ Running Flask Development Server
 Flask comes bundled with a builtin development server for fast local development and testing.
 This is an easy way to take biweeklybudget for a spin, but carries some important and critical
 warnings if you use it with real data. For upstream documentation, see the
-`Flask Development Server docs <http://flask.pocoo.org/docs/0.12/server/>`_. Please note that
+`Flask Development Server docs <https://flask.palletsprojects.com/en/1.1.x/server/>`_. Please note that
 the development server is a single process and defaults to single-threaded, and is only realistically
 usable by one user.
 
diff --git a/docs/source/getting_started.rst b/docs/source/getting_started.rst
index 7e3dbff..8a33e24 100644
--- a/docs/source/getting_started.rst
+++ b/docs/source/getting_started.rst
@@ -198,29 +198,29 @@ Host-Local MySQL Example
 ++++++++++++++++++++++++
 
 It is also possible to use a MySQL server on the physical (Docker) host system. To do so,
-you'll need to know the host system's IP address. On Linux when using the default "bridge"
-Docker networking mode, this will coorespond to a ``docker0`` interface on the host system.
-The Docker documentation on `adding entries to the Container's hosts file <https://docs.docker.com/engine/reference/commandline/run/#add-entries-to-container-hosts-file---add-host>`_
-provides a helpful snippet for this (on my systems, this results in ``172.17.0.1``):
-
-.. code-block:: none
-
-    ip -4 addr show scope global dev docker0 | grep inet | awk '{print $2}' | cut -d / -f 1
-
-In our ``biweeklybudget.env``, we would specify the database connection string that uses the "dockerhost" hosts file entry, created by the ``--add-host`` option:
+you'll need to know the host system's IP address (as seen from the container). On Linux when
+using the default "bridge" Docker networking mode, this will coorespond to the container's
+gateway (the gateway of the Docker network that the container is in) and will usually be
+``172.x.0.1``. Using the special ``host-gateway`` option available in the
+`docker run command --add-host option <https://docs.docker.com/engine/reference/commandline/run/#add-host>`_,
+we can add ``--add-host=host.docker.internal:host-gateway`` to our ``docker run`` command and
+then use that as the hostname in the DB connection string:
 
 .. code-block:: none
 
     # "dockerhost" is added to /etc/hosts via the `--add-host` docker run option
-    DB_CONNSTRING=mysql+pymysql://USERNAME:PASSWORD@dockerhost:3306/DBNAME?charset=utf8mb4
+    DB_CONNSTRING=mysql+pymysql://USERNAME:PASSWORD@host.docker.internal:3306/DBNAME?charset=utf8mb4
 
 So using that, we could run biweeklybudget listening on port 8080 and using our host's MySQL server (on port 3306):
 
 .. code-block:: none
 
-    docker run --name biweeklybudget --env-file biweeklybudget.env \
-    --add-host="dockerhost:$(ip -4 addr show scope global dev docker0 | grep inet | awk '{print $2}' | cut -d / -f 1)" \
-    -p 8080:80 jantman/biweeklybudget:latest
+    docker run \
+        --name biweeklybudget \
+        --env-file biweeklybudget.env \
+        --add-host="host.docker.internal:host-gateway" \
+        -p 8080:80 \
+        jantman/biweeklybudget:latest
 
 You may need to adjust those commands depending on your operating system, Docker networking mode, and MySQL server.
 
@@ -236,7 +236,7 @@ Settings Module Example
 
 If you need to provide biweeklybudget with more complicated configuration, this is
 still possible via a Python settings module. The easiest way to inject one into the
-Docker image is to `mount <https://docs.docker.com/engine/reference/commandline/run/#mount-volume--v---read-only>`_
+Docker image is to `mount <https://docs.docker.com/engine/reference/commandline/run/#read-only>`_
 a python module directly into the biweeklybudget package directory. Assuming you have
 a custom settings module on your local machine at ``/opt/biweeklybudget-settings.py``, you would
 run the container as shown below to mount the custom settings module into the container and use it.
@@ -252,7 +252,7 @@ MySQL running on the Docker host:
 Note on Locales
 +++++++++++++++
 
-biweeklybudget uses Python's `locale <https://docs.python.org/3.6/library/locale.html>`_ module
+biweeklybudget uses Python's `locale <https://docs.python.org/3/library/locale.html>`_ module
 to format currency. This requires an appropriate locale installed on the system. The docker image
 distributed for this package only includes the ``en_US.UTF-8`` locale. If you need a different one,
 please cut a pull request against ``docker_build.py``.
diff --git a/requirements.txt b/requirements.txt
index 8cf73c0..94ec13f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -34,7 +34,7 @@ python-dateutil==2.8.1
 python-editor==1.0.4
 pytz
 requests
-selenium==3.141.0
+selenium==4.2.0
 six==1.14.0
 versionfinder>=1.0.0
 wishlist==0.2.2
diff --git a/tox.ini b/tox.ini
index e788b7b..c38e50d 100644
--- a/tox.ini
+++ b/tox.ini
@@ -52,6 +52,7 @@ setenv =
     PLAID_COUNTRY_CODES=US
 deps =
   -r{toxinidir}/requirements.txt
+  alabaster==0.7.12
   docutils==0.16
   pygments==2.6.1
   sphinx==1.5.5
@@ -108,7 +109,7 @@ commands =
 [testenv:docker]
 deps =
   -r{toxinidir}/requirements.txt
-  docker==2.2.1
+  docker>=7.0.0,<8.0.0
 passenv = {[testenv]passenv},DOCKER_TEST_TAG,DOCKER_BUILD_VER,TEST_DOCKER,GITHUB_OUTPUT
 setenv = {[testenv]setenv}
 basepython = python3.10
@@ -134,7 +135,8 @@ deps =
   mock
   freezegun
   pytest-flask==1.0.0
-  pytest-selenium
+  selenium==4.2.0
+  pytest-selenium==4.0.0
   pytest-timeout
   alembic-verify
   retrying
@@ -162,7 +164,8 @@ deps =
   mock
   freezegun
   pytest-flask==1.0.0
-  pytest-selenium
+  selenium==4.2.0
+  pytest-selenium==4.0.0
   pytest-timeout
   alembic-verify
   retrying