Critical worker timeout - django

Question

I am building an app with Docker, Django and PostgreSQL. I was trying to parse through rows in an excel file (about 7000 rows) and got this error:
web_1 | [2019-09-26 23:39:34 +0000] [1] [CRITICAL] WORKER TIMEOUT
(pid:11) web_1 | [2019-09-26 23:39:34 +0000] [11] [INFO] Worker
exiting (pid: 11) web_1 | [2019-09-26 23:39:34 +0000] [12] [INFO]
Booting worker with pid: 12
I searched for solution and found a suggestion to increase the TIMEOUT but I don't know where to find it.
Here is my yml files.
version: '3.7'
services:
web:
build: .
command: python /code/manage.py runserver 0.0.0.0:8000
command: gunicorn bookstore_project.wsgi -b 0.0.0.0:8000 # new
environment:
- SECRET_KEY=<secret_key>
- DEBUG=1
- ENVIRONMENT=development
volumes:
- .:/code
ports:
- 8000:8000
depends_on:
- db
db:
image: postgres:11
volumes:
- postgres_data:/var/lib/postgresql/data/
volumes:
postgres_data:
docker-compose-prod-yml
version: '3.7'
services:
web:
build: .
command: python /code/manage.py runserver 0.0.0.0:8000
environment:
- ENVIRONMENT=production
- SECRET_KEY=<Secret_key>
- DEBUG=0
ports:
- 8000:8000
depends_on:
- db
db:
image: postgres:11
heroku.yml:
setup:
addons:
- plan: heroku-postgresql
build:
docker:
web: Dockerfile
release:
image: web
command:
- python manage.py collectstatic --noinput
run:
web: gunicorn bookstore_project.wsgi
Any help is appreciated!