**Postgres** container crash on launch with the following error message

```
(project) ➜  project git:(feature/62-api-custom-image-categories) ✗ docker-compose up postgres
Starting project_postgres_1 ... 
Starting project_postgres_1 ... done
Attaching to project_postgres_1
postgres_1        | FATAL:  database files are incompatible with server
postgres_1        | DETAIL:  The data directory was initialized by PostgreSQL version 9.5, which is not compatible with this version 9.6.3.
project_postgres_1 exited with code 1

```

What **options** do I have? II have updated image to the latest one

Portion of my **docker-compose.yml**

```
version: '2'

volumes:
  ipython_history: {}

services:
  postgres:
    image: mdillon/postgis
    ports:
     - "5432:5432"
    environment:
      - POSTGRES_DB=p_dev
      - POSTGRES_USER=p_user
      - POSTGRES_PASSWORD=password

```

Is it possible to convert the data or the only option is to delete the container (losing all its data) and then re-create it?