# Which issue(s) this PR fixes
I was seeing some strange logs occasionally pop up from celery:
```bash
[1;33m2023-07-13 10:05:14,772 source=engine:celery worker=MainProcess task_id=??? task_name=??? name=celery.redirected level=WARNING AttributeError: '_Code' object has no attribute 'co_positions'[0m
```
Did a bit of digging on this and
[realized](https://github.com/DataDog/dd-trace-py/issues/4149) that
`celery==5.2.7` does not support Python 3.11 (the version we use):
We should immediately upgrade to `celery==5.3.1`. It mentions in this in
the changelog for that version:
## Checklist
- [ ] Unit, integration, and e2e (if applicable) tests updated (N/A)
- [ ] Documentation added (or `pr:no public docs` PR label added if not
required) (N/A)
- [ ] `CHANGELOG.md` updated (or `pr:no changelog` PR label added if not
required) (N/A)
71e77800ec