diff --git a/.env.dev b/.env.dev
new file mode 100644
index 0000000..8d73f7d
--- /dev/null
+++ b/.env.dev
@@ -0,0 +1,5 @@
+SECRET_KEY=your_secret_key
+DB_NAME=your_db_name
+DB_USER=your_db_user
+DB_PASSWORD=your_db_password
+DB_ROOT_PASSWORD=your_db_root_password
diff --git a/BH/settings.py b/BH/settings.py
index a876ea9..ffaa220 100644
--- a/BH/settings.py
+++ b/BH/settings.py
@@ -88,8 +88,8 @@ DATABASES = {
         'NAME': os.getenv('DB_NAME'),
         'USER': os.getenv('DB_USER'),
         'PASSWORD': os.getenv('DB_PASSWORD'),
-        'HOST': os.getenv('DB_HOST'),
-        'PORT': os.getenv('DB_PORT'),
+        'HOST': 'db',
+        'PORT': '3306',
     }
 }
 
diff --git a/Dockerfile b/Dockerfile
index 0398b45..3e9c5a0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # Use an official Python runtime as a parent image
-FROM python:3.11-slim-bookworm
+FROM python:3.13-slim-trixie
 
 # Set environment variables
 ENV PYTHONDONTWRITEBYTECODE=1
diff --git a/docker-compose.yml b/docker-compose.yml
index c064a3e..2ca4b49 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,17 +1,34 @@
 services:
+  db:
+    image: mariadb:12.2
+    env_file:
+      - .env
+    environment:
+      MYSQL_DATABASE: ${DB_NAME}
+      MYSQL_USER: ${DB_USER}
+      MYSQL_PASSWORD: ${DB_PASSWORD}
+      MYSQL_ROOT_PASSWORD: ${DB_ROOT_PASSWORD}
+    volumes:
+      - mariadb_data:/var/lib/mysql
+    restart: unless-stopped
+
   django:
     build: .
     env_file:
       - .env
     volumes:
       - .:/app
-    restart:
-        unless-stopped
+    restart: unless-stopped
     ports:
       - "3030:3030"
-    network_mode: "host"
+    depends_on:
+      - db
     command: >
       sh -c "python manage.py makemigrations blog --noinput &&
              python manage.py migrate --noinput &&
              python manage.py collectstatic --noinput &&
              gunicorn BH.wsgi:application --bind 0.0.0.0:3030 --workers ${GUNICORN_WORKERS:-3}"
+
+volumes:
+  mariadb_data:
+
diff --git a/requirements.txt b/requirements.txt
index c4150bf..d4a27d4 100644
Binary files a/requirements.txt and b/requirements.txt differ