diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index bd91f88e..c9e4a997 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -13,7 +13,7 @@ jobs:
     strategy:
       matrix:
         include:
-          - python-version: 3.10.12
+          - python-version: 3.12.3
     steps:
     - name: Checkout ✅
       uses: actions/checkout@v2
diff --git a/Dockerfile b/Dockerfile
index 2c3733c0..e5254b5b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:jammy
+FROM ubuntu:noble
 
 # Credits to yjacolin for providing first versions
 LABEL original_developer="yjacolin <yves.jacolin@camptocamp.com>" \
@@ -18,9 +18,8 @@ ENV LC_ALL="en_US.UTF-8" \
 	LANGUAGE="en_US.UTF-8" \
     \
 	\
-	DEB_PACKAGES="locales gunicorn postgresql-client python3-gunicorn python3-gevent python3-psycopg2 python3-lxml python3-pyproj" \
+	DEB_PACKAGES="locales gunicorn python3.12-venv postgresql-client python3-gunicorn python3-gevent python3-lxml python3-pyproj" \
 	DEB_BUILD_DEPS="make python3-pip" \
-	# GHC ENV settings\
 	ADMIN_NAME=admin \
 	ADMIN_PWD=admin \
 	ADMIN_EMAIL=admin.istrator@mydomain.com \
@@ -91,7 +90,7 @@ COPY . /GeoHealthCheck
 # Install
 RUN \
 	chmod a+x /*.sh && ./install.sh \
-    # Cleanup TODO: remove unused Locales and TZs
+    # Cleanup TODO: remove unused Locales and TZs \
     && apt-get remove --purge -y ${DEB_BUILD_DEPS} \
     && apt-get clean \
     && apt autoremove -y  \
diff --git a/GeoHealthCheck/healthcheck.py b/GeoHealthCheck/healthcheck.py
index 1451699d..a8c02dc2 100644
--- a/GeoHealthCheck/healthcheck.py
+++ b/GeoHealthCheck/healthcheck.py
@@ -27,7 +27,7 @@
 #
 # =================================================================
 
-from datetime import datetime
+from datetime import datetime, timezone
 import logging
 import json
 from urllib.request import urlopen
@@ -95,7 +95,7 @@ def run_resource(resourceid):
     # Run test
     result = run_test_resource(resource)
 
-    run1 = Run(resource, result, datetime.utcnow())
+    run1 = Run(resource, result, datetime.now(timezone.utc))
 
     DB.session.add(run1)
 
@@ -144,7 +144,7 @@ def sniff_test_resource(config, resource_type, url):
         raise RuntimeError(msg2)
 
     title = None
-    start_time = datetime.utcnow()
+    start_time = datetime.now(timezone.utc)
     message = None
     resource_type_map = {'OGC:WMS': [partial(WebMapService, version='1.3.0'),
                                      partial(WebMapService, version='1.1.1')],
@@ -223,7 +223,7 @@ def sniff_test_resource(config, resource_type, url):
             title = urlparse(url).hostname
         elif resource_type == 'OSGeo:GeoNode':
             endpoints = ows
-            end_time = datetime.utcnow()
+            end_time = datetime.now(timezone.utc)
             delta = end_time - start_time
             response_time = '%s.%s' % (delta.seconds, delta.microseconds)
             base_tags = geonode_make_tags(url)
@@ -259,7 +259,7 @@ def sniff_test_resource(config, resource_type, url):
         message = msg
         success = False
 
-    end_time = datetime.utcnow()
+    end_time = datetime.now(timezone.utc)
 
     delta = end_time - start_time
     response_time = '%s.%s' % (delta.seconds, delta.microseconds)
@@ -311,10 +311,10 @@ def geonode_make_tags(base_url):
 
 if __name__ == '__main__':
     print('START - Running health check tests on %s'
-          % datetime.utcnow().isoformat())
+          % datetime.now(timezone.utc).isoformat())
     run_resources()
     print('END - Running health check tests on %s'
-          % datetime.utcnow().isoformat())
+          % datetime.now(timezone.utc).isoformat())
     # from init import App
     # if len(sys.argv) < 3:
     #     print('Usage: %s <resource_type> <url>' % sys.argv[0])
diff --git a/GeoHealthCheck/migrations/versions/2638c2a40625_.py b/GeoHealthCheck/migrations/versions/2638c2a40625_.py
index b729043d..379a0af1 100644
--- a/GeoHealthCheck/migrations/versions/2638c2a40625_.py
+++ b/GeoHealthCheck/migrations/versions/2638c2a40625_.py
@@ -7,8 +7,6 @@
 """
 from alembic import op
 import sqlalchemy as sa
-import imp
-import os
 from GeoHealthCheck.migrations import alembic_helpers
 
 # revision identifiers, used by Alembic.
diff --git a/GeoHealthCheck/migrations/versions/496427d03f87_.py b/GeoHealthCheck/migrations/versions/496427d03f87_.py
index c4d290c4..b2791b6d 100644
--- a/GeoHealthCheck/migrations/versions/496427d03f87_.py
+++ b/GeoHealthCheck/migrations/versions/496427d03f87_.py
@@ -7,8 +7,6 @@
 """
 from alembic import op
 import sqlalchemy as sa
-import imp
-import os
 from GeoHealthCheck.migrations import alembic_helpers
 
 # revision identifiers, used by Alembic.
diff --git a/GeoHealthCheck/migrations/versions/992013af402f_.py b/GeoHealthCheck/migrations/versions/992013af402f_.py
index cd221963..7505b3b1 100644
--- a/GeoHealthCheck/migrations/versions/992013af402f_.py
+++ b/GeoHealthCheck/migrations/versions/992013af402f_.py
@@ -7,8 +7,6 @@
 """
 from alembic import op
 import sqlalchemy as sa
-import imp
-import os
 from GeoHealthCheck.migrations import alembic_helpers
 
 # revision identifiers, used by Alembic.
diff --git a/GeoHealthCheck/models.py b/GeoHealthCheck/models.py
index 45f9d5b0..627b4ae6 100644
--- a/GeoHealthCheck/models.py
+++ b/GeoHealthCheck/models.py
@@ -31,7 +31,7 @@
 import json
 import logging
 from flask_babel import gettext as _
-from datetime import datetime, timedelta
+from datetime import datetime, timedelta, timezone
 from itsdangerous import TimedJSONWebSignatureSerializer as Serializer
 from sqlalchemy import func, and_
 
@@ -58,7 +58,7 @@ def flush_runs():
     all_runs = Run.query.all()
     run_count = 0
     for run in all_runs:
-        days_old = (datetime.utcnow() - run.checked_datetime).days
+        days_old = (datetime.now(timezone.utc) - run.checked_datetime).days
         if days_old > retention_days:
             run_count += 1
             DB.session.delete(run)
@@ -87,7 +87,7 @@ class Run(DB.Model):
     report = deferred(DB.Column(DB.Text, default={}))
 
     def __init__(self, resource, result,
-                 checked_datetime=datetime.utcnow()):
+                 checked_datetime=datetime.now(timezone.utc)):
         self.resource = resource
         self.success = result.success
         self.response_time = result.response_time_str
@@ -680,13 +680,13 @@ def __init__(self, resource, owner, interval_mins):
         self.init_datetimes(interval_mins)
 
     def init_datetimes(self, interval_mins):
-        self.start_time = datetime.utcnow()
+        self.start_time = datetime.now(timezone.utc)
         # Subtract some space from end-time to allow obtain at scheduled time
         minutes = interval_mins - 1
         self.end_time = self.start_time + timedelta(minutes=minutes)
 
     def has_expired(self):
-        now = datetime.utcnow()
+        now = datetime.now(timezone.utc)
         return now > self.end_time
 
     def obtain(self, owner, frequency):
@@ -723,7 +723,7 @@ def __init__(self, username, password, email, role='user'):
         self.set_password(password)
         self.email = email
         self.role = role
-        self.registered_on = datetime.utcnow()
+        self.registered_on = datetime.now(timezone.utc)
 
     def authenticate(self, password):
         return util.verify_hash(password, self.password)
diff --git a/GeoHealthCheck/probe.py b/GeoHealthCheck/probe.py
index b8f497e0..937e0866 100644
--- a/GeoHealthCheck/probe.py
+++ b/GeoHealthCheck/probe.py
@@ -1,7 +1,7 @@
 import logging
 import sys
 
-import datetime
+from datetime import datetime, timezone
 import requests
 
 from factory import Factory
@@ -128,7 +128,7 @@ def get_metadata_cached(self, resource, version='any'):
         metadata = None
         if key in Probe.METADATA_CACHE:
             entry = Probe.METADATA_CACHE[key]
-            delta = datetime.datetime.utcnow() - entry['time']
+            delta = datetime.now(timezone.utc) - entry['time']
             metadata = entry['metadata']
 
             # Don't keep cache forever, refresh every N mins
@@ -144,7 +144,7 @@ def get_metadata_cached(self, resource, version='any'):
                 # Store entry with time, for expiry later
                 entry = {
                     "metadata": metadata,
-                    "time": datetime.datetime.utcnow()
+                    "time": datetime.now(timezone.utc)
                 }
                 Probe.METADATA_CACHE[key] = entry
 
diff --git a/GeoHealthCheck/result.py b/GeoHealthCheck/result.py
index ae890ef2..d635c6b7 100644
--- a/GeoHealthCheck/result.py
+++ b/GeoHealthCheck/result.py
@@ -1,4 +1,4 @@
-import datetime
+from datetime import datetime, timezone
 
 
 class Result(object):
@@ -36,10 +36,10 @@ def set(self, success, message):
         self.message = message
 
     def start(self):
-        self.start_time = datetime.datetime.utcnow()
+        self.start_time = datetime.now(timezone.utc)
 
     def stop(self):
-        self.end_time = datetime.datetime.utcnow()
+        self.end_time = datetime.now(timezone.utc)
 
         delta = self.end_time - self.start_time
         self.response_time_secs = delta.seconds
diff --git a/docker/README.md b/docker/README.md
index a1b0977f..2a8d8199 100644
--- a/docker/README.md
+++ b/docker/README.md
@@ -43,7 +43,7 @@ For example [run.sh](run.sh) which launches GHC using the robust `gunicorn` WSGI
 ## Run
 
 ```
-docker run -d --name ghc_web -p 8083:80 -v ghc_sqlitedb:/GeoHealthCheck/DB geopython/geohealthcheck:latest
+docker run -d --name ghc_web --rm -p 8083:80 -v ghc_sqlitedb:/GeoHealthCheck/DB geopython/geohealthcheck:latest
 ```
 
 go to http://localhost:8083 (port 80 in GHC Container is mapped to 8083 on host).
@@ -56,7 +56,7 @@ This mode can be disabled by passing `GHC_RUNNER_IN_WEBAPP` to as an ENV
 var to the Docker container:
 
 ```
-docker run  --name ghc_web -e GHC_RUNNER_IN_WEBAPP=False -p 8083:80 -v ghc_sqlitedb:/GeoHealthCheck/DB geopython/geohealthcheck:latest
+docker run  --name ghc_web --rm -e GHC_RUNNER_IN_WEBAPP=False -p 8083:80 -v ghc_sqlitedb:/GeoHealthCheck/DB geopython/geohealthcheck:latest
 
 ```
 
@@ -66,13 +66,13 @@ You can then run `GHC Runner` as a separate container by overriding
 the default `ENTRYPOINT` with `/run-runner.sh`:
 
 ```
-docker run -d --name ghc_runner --entrypoint "/run-runner.sh" -v ghc_sqlitedb:/GeoHealthCheck/DB geopython/geohealthcheck:latest
+docker run -d --name ghc_runner --rm --entrypoint "/run-runner.sh" -v ghc_sqlitedb:/GeoHealthCheck/DB geopython/geohealthcheck:latest
 ```
 
 But the most optimal way to run GHC with scheduled jobs and optionally Postgres as backend DB,
 is to use [Docker Compose](https://docs.docker.com/compose), see below.
 
-## Using docker-compose
+## Using docker compose
 
 This allows a complete Docker setup, including scheduling and optionally using 
 Postgres/PostGIS as database (recommended).  
@@ -80,7 +80,7 @@ See the [Docker Compose Documentation](https://docs.docker.com/compose)
 for more info. GHC Webapp and Runner are in this case 
 deployed as separate processes (Docker containers).
 
-*Note that the `docker-compose` YAML files below are meant as examples to be adapted to your*
+*Note that the `docker compose` YAML files below are meant as examples to be adapted to your*
 *local deployment situation.* 
 
 ### Using sqlite DB (default)
@@ -92,7 +92,7 @@ To run (`-d` allows running in background):
 
 ```
 cd docker/compose
-docker-compose -f docker-compose.yml up  [-d]
+docker compose -f docker-compose.yml up  [-d]
 
 # go to http://localhost:8083 (port 80 in GHC Container is mapped to 8083 on host)
 
@@ -105,10 +105,9 @@ similar but uses Postgres as the database.
 
 To run:
 
-
 ```
 cd docker/compose
-docker-compose -f docker-compose.postgis.yml up [-d]
+docker compose -f docker-compose.postgis.yml up [-d]
 
 # go to http://localhost:8083 (port 80 in GHC Container is mapped to 8083 on host)
 
diff --git a/docker/compose/README.md b/docker/compose/README.md
index 3deade94..2c4ccd3c 100644
--- a/docker/compose/README.md
+++ b/docker/compose/README.md
@@ -5,3 +5,16 @@
 
 Within this directory are *examples* for running GHC using Docker compose.
 You should copy and adapt these for your own deployment.
+
+## Running with SQLite DB
+```shell
+docker compose up -d
+docker compose down --remove-orphans
+
+```
+## Running with PostGIS DB
+```shell
+docker compose -f docker-compose.postgis.yml up -d
+docker compose -f docker-compose.postgis.yml down --remove-orphans
+
+```
diff --git a/docker/compose/docker-compose.postgis.yml b/docker/compose/docker-compose.postgis.yml
index 71a1d16b..a0b44a7f 100644
--- a/docker/compose/docker-compose.postgis.yml
+++ b/docker/compose/docker-compose.postgis.yml
@@ -1,9 +1,8 @@
 # GHC Docker setup with Postgres as backend DB.
 #
 # To run:
-# sudo docker-compose -f docker-compose.postgis.yml up [-d]
+# sudo docker compose -f docker-compose.postgis.yml up [-d]
 #
-version: "3"
 
 services:
   ghc_web:
@@ -63,7 +62,7 @@ services:
       # - ./../GeoHealthCheck/plugins:/plugins:ro
 
   postgis_ghc:
-    image: mdillon/postgis:10-alpine
+    image: postgis/postgis:14-3.5-alpine
 
     container_name: postgis_ghc
 
diff --git a/docker/compose/ghc-postgis.env b/docker/compose/ghc-postgis.env
index 67bd5892..4a8df6ed 100644
--- a/docker/compose/ghc-postgis.env
+++ b/docker/compose/ghc-postgis.env
@@ -1,7 +1,11 @@
 # We mainly need to override the default (sqlite) DB URI
 SQLALCHEMY_DATABASE_URI=postgresql://ghc:ghc@postgis_ghc:5432/ghc
 
-# Postgres Docker container settings
+# PostgreSQL/PostGIS Docker container settings
+POSTGRES_HOST=postgis_ghc
+POSTGRES_PORT=5432
 POSTGRES_USER=ghc
+PGUSER=ghc
 POSTGRES_PASSWORD=ghc
+PGPASSWORD=ghc
 POSTGRES_DB=ghc
diff --git a/docker/docker-clean.sh b/docker/docker-clean.sh
index 87716567..90dcef51 100755
--- a/docker/docker-clean.sh
+++ b/docker/docker-clean.sh
@@ -1,3 +1,14 @@
 #!/bin/bash
-docker rm $(docker ps -a -q)
-docker rmi $(docker images -f dangling=true -q)
+
+#
+# Remove all exited containers
+for c in $(docker ps -a -f status=exited -q)
+do
+	docker rm ${c}
+done
+
+# And dangling images
+for i in $(docker images -f dangling=true -q)
+do
+	docker rmi ${i}
+done
diff --git a/docker/install-docker-ubuntu.sh b/docker/install-docker-ubuntu.sh
deleted file mode 100755
index 0119b2fc..00000000
--- a/docker/install-docker-ubuntu.sh
+++ /dev/null
@@ -1,63 +0,0 @@
-#!/bin/bash
-#
-# This prepares an empty Ubuntu system for running Docker.
-#
-# Just van den Broecke - 2017
-# DEPRECATED - 2021 update:  there are much quicker ways
-# See https://docs.docker.com/engine/install/ubuntu/
-#
-# Below was based on
-# https://docs.docker.com/engine/installation/linux/ubuntu/
-# as on may 26 2017.
-# Run as root or prepend all commands with "sudo"!
-#
-
-# Optional, comment out for your locale
-# set time right and configure timezone and locale
-# echo "Europe/Amsterdam" > /etc/timezone
-# dpkg-reconfigure -f noninteractive tzdata
-
-# Bring system uptodate
-apt-get update
-apt-get -y upgrade
-
-# Install packages to allow apt to use a repository over HTTPS
-apt-get install -y software-properties-common apt-transport-https ca-certificates curl
-
-# Add keys and extra repos
-curl -fsSL https://download.docker.com/linux/ubuntu/gpg | apt-key add -
-
-# Verify key
-apt-key fingerprint 0EBFCD88
-
-# Add Docker repo to deb config
-add-apt-repository \
-   "deb [arch=amd64] https://download.docker.com/linux/ubuntu \
-   $(lsb_release -cs) \
-   stable"
-
-# Bring packages uptodate
-apt-get update
-
-# The linux-image-extra package allows you use the aufs storage driver.
-# at popup keep locally installed config option
-# apt-get install -y linux-image-extra-$(uname -r)
-apt-get install -y linux-image-extra-$(uname -r) linux-image-extra-virtual
-
-# https://askubuntu.com/questions/98416/error-kernel-headers-not-found-but-they-are-in-place
-apt-get install -y build-essential linux-headers-`uname -r` dkms
-
-# Install Docker CE
-apt-get install docker-ce
-
-# If you are installing on Ubuntu 14.04 or 12.04, apparmor is required.
-# You can install it using (usually already installed)
-# apt-get install -y apparmor
-
-# Start the docker daemon. Usually already running
-# service docker start
-
-# Docker compose
-export dockerComposeVersion="1.20.1"
-curl -L https://github.com/docker/compose/releases/download/${dockerComposeVersion}/docker-compose-`uname -s`-`uname -m` > /usr/local/bin/docker-compose
-chmod +x /usr/local/bin/docker-compose
diff --git a/docker/scripts/configure.sh b/docker/scripts/configure.sh
index dd851f4e..980faa5e 100755
--- a/docker/scripts/configure.sh
+++ b/docker/scripts/configure.sh
@@ -13,6 +13,8 @@ echo "Using DB_TYPE=${DB_TYPE}"
 # Create DB shorthand
 function create_db() {
 	pushd /GeoHealthCheck/  || exit 1
+	source bin/activate
+
 	paver create -u ${ADMIN_NAME} -p ${ADMIN_PWD} -e ${ADMIN_EMAIL}
 	popd || exit 1
 }
@@ -45,7 +47,7 @@ case ${DB_TYPE} in
 		echo "Check if Postgres is avail/ready..."
 		until pg_isready -h "${DB_HOST}"; do
 		  echo "Exit code=$? - Postgres not ready - sleeping"
-		  sleep 1
+		  sleep $[ ( $RANDOM % 6 )  + 1 ]s
 		done
 
 		# Check if we need to create DB tables
diff --git a/docker/scripts/install.sh b/docker/scripts/install.sh
index 117ffc13..5f448c93 100755
--- a/docker/scripts/install.sh
+++ b/docker/scripts/install.sh
@@ -5,10 +5,14 @@
 # e.g. fetching Metadata (Caps) and testing all layers
 # Install Python packages for installation and setup
 
+python3 -m venv GeoHealthCheck
 pushd /GeoHealthCheck || exit 1
 
+source bin/activate
+
+
 # Docker-specific deps
-pip install -r docker/scripts/requirements.txt
+pip install --no-cache-dir -r docker/scripts/requirements.txt
 
 # Sets up GHC itself
 paver setup
diff --git a/docker/scripts/run-runner.sh b/docker/scripts/run-runner.sh
index a3e3b000..4b559027 100755
--- a/docker/scripts/run-runner.sh
+++ b/docker/scripts/run-runner.sh
@@ -12,6 +12,7 @@ echo "START /run-runner.sh"
 export PYTHONPATH=/GeoHealthCheck/GeoHealthCheck:$PYTHONPATH
 
 cd /GeoHealthCheck
+source bin/activate
 paver runner_daemon
 
 echo "END /run-runner.sh"
diff --git a/docker/scripts/run-tests.sh b/docker/scripts/run-tests.sh
index 489a7fbf..d75693c7 100755
--- a/docker/scripts/run-tests.sh
+++ b/docker/scripts/run-tests.sh
@@ -17,6 +17,7 @@ echo "START /run-tests.sh"
 export PYTHONPATH=/GeoHealthCheck/GeoHealthCheck:$PYTHONPATH
 
 cd /GeoHealthCheck
+source bin/activate
 paver run_tests
 
 echo "END /run-tests.sh"
diff --git a/docker/scripts/run-web.sh b/docker/scripts/run-web.sh
index b825996d..47bcbaf1 100755
--- a/docker/scripts/run-web.sh
+++ b/docker/scripts/run-web.sh
@@ -13,7 +13,9 @@ echo "START /run-web.sh"
 # Make sure PYTHONPATH includes GeoHealthCheck
 export PYTHONPATH=/GeoHealthCheck/GeoHealthCheck:$PYTHONPATH
 
-cd /GeoHealthCheck
+pushd /GeoHealthCheck || exit 1
+
+source bin/activate
 
 paver upgrade
 
@@ -21,7 +23,7 @@ paver upgrade
 [ "${SCRIPT_NAME}" = '/' ] && export SCRIPT_NAME="" && echo "make SCRIPT_NAME empty from /"
 
 echo "Running GHC WSGI on ${HOST}:${PORT} with ${WSGI_WORKERS} workers and SCRIPT_NAME=${SCRIPT_NAME}"
-exec gunicorn --workers ${WSGI_WORKERS} \
+exec gunicorn --pythonpath /GeoHealthCheck/lib/python3.12/site-packages/ --workers ${WSGI_WORKERS} \
 		--worker-class=${WSGI_WORKER_CLASS} \
 		--timeout ${WSGI_WORKER_TIMEOUT} \
 		--name="Gunicorn_GHC" \
diff --git a/requirements.txt b/requirements.txt
index f4bb6441..c43ec0a8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,14 +12,15 @@ itsdangerous==1.1.0
 pyproj >=2.6.1
 lxml >= 4.8.0, <= 4.9.4
 OWSLib==0.20.0
-jsonschema==3.0.2 # downgrade from 3.2.0 on sept 29, 2020, issue 331, consider better fix
-openapi-spec-validator==0.2.8
+jsonschema==4.26.0 # downgrade from 3.2.0 to 3.0.2 on sept 29, 2020, issue 331, consider better fix
+openapi-spec-validator==0.9.0
+psycopg2-binary
 Sphinx==5.3.0
 sphinx-rtd-theme==1.3.0
 sphinx-autoapi
 requests>=2.23.0
 WTForms==2.2.1
-APScheduler==3.6.1
+APScheduler==3.11.2
 passlib==1.7.1
 Werkzeug==0.16.1
-tzlocal<3.0 # Fix based on https://github.com/Yelp/elastalert/issues/2968
+tzlocal # Fix based on https://github.com/Yelp/elastalert/issues/2968