---
title: Correct the ttl and stale_ttl fields to be a string type
summary: null
url: >-
  https://www.fastly.com/documentation/reference/changes/2023/07/update-field-types-for-ttl-and-stale-ttl
---

The `ttl` and `stale_ttl` fields have been corrected to reflect their actual type (a string, not an integer).