Below is my code for renovate bot for my git repo.

But i see my requirement.txt & requirement.txt.internal files packages raises a PR whenever it finds new version.
i want to achieve this scanning to be done on monthly base and raise PR on monthly scan. But currently with below code my PR are getting raised on frequent bases.

{
  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
  "python": {
    "registryUrls": ["https://pypi.org/simple", "https://XXXXXX.com/repository/pypi/simple"]
  },
  "pip_requirements": {
    "fileMatch": ["^requirements.txt.internal$"],
    "ignorePaths": ["^requirements.txt$"]
  },
  "schedule": [ "before 3am on the first day of the month" ],
  "prConcurrentLimit": 100,
  "prHourlyLimit": 100,
  "docker": {
    "schedule": [
      "before 3am on the first day of the month"
    ]
  },
  "packageRules": [
    {
      "matchUpdateTypes": ["major", "minor", "patch", "digest"],
      "automerge": true
    }
  ]
}

i want to achieve this scanning to be done on monthly base and raise PR on monthly scan. But currently with below code my PR are getting raised on frequent bases.