I have a list of schedule that defined in meltano.yml being read and orchestrated by dagster. Does anyone know how to define what task goes first and how to make sure it is sequential? yaml file

schedules:
- name: schedule_1
  interval: '@hourly'
  job: job
jobs:
- name: job
  tasks:
  - task_1
  - task_2

while they don’t start at the same time, once either of the task is started, dagster or meltano tries to start the other. what I want to do is to run task_1 first and then task_2 next after task_1 is done