postgres 18 does not work on ubuntu 22

app/Dockerfile

@@ -10,9 +10,9 @@ RUN pip install --no-cache-dir -r requirements.txt
 COPY . ./app/
 
 # Expose Gunicorn port
-EXPOSE 8000
+EXPOSE 4444
 
 # Gunicorn command for a package structure
 # "app:create_app()" assumes you have a factory function in __init__.py
 # If your Flask instance is just named 'app' inside __init__.py, use "app:app"
-CMD ["gunicorn", "--preload", "-w", "4", "-b", "0.0.0.0:8000", "app:create_app()"]
+CMD ["gunicorn", "--preload", "-w", "4", "-b", "0.0.0.0:4444", "app:create_app()"]

docker-compose.yml

@@ -1,6 +1,6 @@
 services:
   db:
-    image: postgres:18-alpine
+    image: postgres:17
     restart: always
     env_file: ./app/.env.db
     ports:
@@ -19,7 +19,7 @@ services:
       dockerfile: Dockerfile
     env_file: ./app/.env.web
     ports:
-      - "8000:8000"
+      - "4444:4444"
     depends_on:
       db:
         condition: service_healthy