diff --git a/.dockerignore b/.dockerignore
index fa56f9e3..3ef33714 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -1,3 +1,114 @@
+# Project-specific ignores
+
 # SSL certificates
 certs
 certbot
+
+
+# Generic ignores
+
+**/.git
+**/.github
+**/.gitignore
+**/.vscode
+**/coverage
+**/.env
+**/.aws
+**/.ssh
+
+Dockerfile
+README.md
+docker-compose.yml
+**/.DS_Store
+**/venv
+**/env
+
+# Git
+.git
+.gitignore
+.gitattributes
+
+
+# CI
+.codeclimate.yml
+.travis.yml
+.taskcluster.yml
+
+# Docker
+docker-compose.yml
+Dockerfile
+.docker
+.dockerignore
+
+# Byte-compiled / optimized / DLL files
+**/__pycache__/
+**/*.py[cod]
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+env/
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+*.egg-info/
+.installed.cfg
+*.egg
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.coverage
+.cache
+nosetests.xml
+coverage.xml
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/
+
+# Virtual environment
+.env
+.venv/
+venv/
+
+# PyCharm
+.idea
+
+# Python mode for VIM
+.ropeproject
+**/.ropeproject
+
+# Vim swap files
+**/*.swp
+
+# VS Code
+.vscode/
diff --git a/Dockerfile b/Dockerfile
index a5f64ca7..42e0799c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,16 +1,11 @@
-FROM ubuntu:22.04
-
-MAINTAINER Iurii Milovanov "duruku@gmail.com"
+FROM python:3.11.3-slim-bullseye
 
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \
-    python3-pip \
-    python3-setuptools \
-    curl && \
-    python3 -m pip install --upgrade pip
+    curl
 
 COPY ./requirements.txt /simoc/requirements.txt
-RUN python3 -m pip install -r /simoc/requirements.txt
+RUN pip install -r /simoc/requirements.txt
 
 COPY . /simoc
 
diff --git a/Dockerfile-celery-worker b/Dockerfile-celery-worker
index 05d3f514..496fc225 100644
--- a/Dockerfile-celery-worker
+++ b/Dockerfile-celery-worker
@@ -1,16 +1,10 @@
-FROM ubuntu:22.04
-
-MAINTAINER Iurii Milovanov "duruku@gmail.com"
+FROM python:3.11.3-slim-bullseye
 
 RUN apt-get update && \
-    apt-get install -y --no-install-recommends \
-    python3-pip \
-    python3-setuptools \
-    curl && \
-    python3 -m pip install --upgrade pip
-
-COPY ./requirements.txt /simoc/requirements.txt
-RUN python3 -m pip install -r /simoc/requirements.txt
+    apt-get install -y --no-install-recommends
+
+COPY ./requirements-celery.txt /simoc/requirements-celery.txt
+RUN pip install -r /simoc/requirements-celery.txt
 
 COPY . /simoc
 
diff --git a/docker-compose.mysql.yml.jinja b/docker-compose.mysql.yml.jinja
index 1e796815..d3b92245 100644
--- a/docker-compose.mysql.yml.jinja
+++ b/docker-compose.mysql.yml.jinja
@@ -1,7 +1,7 @@
 version: '3.6'
 services:
   nginx:
-    image: nginx
+    image: nginx:1.25-alpine
     {% if use_certbot %}
     command: "/bin/sh -c 'while :; do sleep 6h & wait $${!}; nginx -s reload; done & nginx -g \"daemon off;\"'"
     {% endif %}
@@ -57,7 +57,7 @@ services:
     {% if redis_use_bitnami %}
     image: bitnami/redis:latest
     {% else %}
-    image: redis:latest
+    image: redis:7.0-alpine
     {% endif %}
     restart: always
     ports:
@@ -67,7 +67,7 @@ services:
     environment:
       - REDIS_PASSWORD=${REDIS_PASSWORD}
     {% if not redis_use_bitnami %}
-    command: ["bash", "-c", 'docker-entrypoint.sh --requirepass $REDIS_PASSWORD']
+    command: ["sh", "-c", 'docker-entrypoint.sh --requirepass $REDIS_PASSWORD']
     {% endif %}
   celery-worker:
     {% if use_dockerhub %}
diff --git a/requirements-celery.txt b/requirements-celery.txt
new file mode 100644
index 00000000..53456035
--- /dev/null
+++ b/requirements-celery.txt
@@ -0,0 +1,14 @@
+celery==5.2.7
+flask==2.3.2
+flask-login==0.6.2
+flask_socketio==5.3.2
+flask-sqlalchemy==2.5.1
+jinja2==3.1.2
+mesa==1.1.1
+mysql-connector-python==8.0.32
+numpy==1.24.3
+quantities==0.14.1
+redis==4.5.4
+scikit-learn==1.2.0
+scipy==1.9.3
+sqlalchemy==1.4.46
\ No newline at end of file