The Fix
pip install celery==5.2.4
Based on closed celery/celery issue #7372 · PR/commit linked
Production note: Most teams hit this during upgrades or environment changes. Roll out with a canary and smoke critical endpoints (health, OpenAPI/docs) before 100%.
@@ -20,7 +20,7 @@
__author__ = 'Ask Solem'
__contact__ = '[email protected]'
-__homepage__ = 'http://celeryproject.org'
+__homepage__ = 'https://docs.celeryq.dev/'
__docformat__ = 'restructuredtext'
Option A — Upgrade to fixed release\npip install celery==5.2.4\nWhen NOT to use: This fix is not applicable if the new site links are incorrect.\n\n
Why This Fix Works in Production
- Trigger: The [PyPI page](https://pypi.org/project/celery/) stills points to the old URLs which confuses users because those domains no longer exist and in some cases…
- Mechanism: The PyPI page contained outdated links that pointed to non-existent domains
- Why the fix works: Updated the package links to point to the new site, resolving issue #7372. (first fixed release: 5.2.4).
- If left unfixed, the same config can fail only in production (env differences), causing startup failures or partial feature outages.
Why This Breaks in Prod
- The PyPI page contained outdated links that pointed to non-existent domains
- Production symptom (often without a traceback): The [PyPI page](https://pypi.org/project/celery/) stills points to the old URLs which confuses users because those domains no longer exist and in some cases the SSL certificate is invalid.
Proof / Evidence
- GitHub issue: #7372
- Fix PR: https://github.com/celery/celery/pull/7373
- First fixed release: 5.2.4
- Reproduced locally: No (not executed)
- Last verified: 2026-02-09
- Confidence: 0.85
- Did this fix it?: Yes (upstream fix exists)
- Own content ratio: 0.71
Discussion
High-signal excerpts from the issue thread (symptoms, repros, edge-cases).
“Hey @mvaled :wave:, Thank you for opening an issue”
Failure Signature (Search String)
- The [PyPI page](https://pypi.org/project/celery/) stills points to the old URLs which confuses users because those domains no longer exist and in some cases the SSL certificate is
Copy-friendly signature
Failure Signature
-----------------
The [PyPI page](https://pypi.org/project/celery/) stills points to the old URLs which confuses users because those domains no longer exist and in some cases the SSL certificate is invalid.
Error Message
Signature-only (no traceback captured)
Error Message
-------------
The [PyPI page](https://pypi.org/project/celery/) stills points to the old URLs which confuses users because those domains no longer exist and in some cases the SSL certificate is invalid.
What Broke
Users were confused due to invalid SSL certificates and broken links.
Why It Broke
The PyPI page contained outdated links that pointed to non-existent domains
Fix Options (Details)
Option A — Upgrade to fixed release Safe default (recommended)
pip install celery==5.2.4
Use when you can deploy the upstream fix. It is usually lower-risk than long-lived workarounds.
Fix reference: https://github.com/celery/celery/pull/7373
First fixed release: 5.2.4
Last verified: 2026-02-09. Validate in your environment.
When NOT to Use This Fix
- This fix is not applicable if the new site links are incorrect.
Did This Fix Work in Your Case?
Quick signal helps us prioritize which fixes to verify and improve.
Prevention
- Add a TLS smoke test that performs a real handshake in CI (include CA bundle validation and hostname checks).
- Alert on handshake failures by error string and endpoint to catch cert/CA changes quickly.
Version Compatibility Table
| Version | Status |
|---|---|
| 5.2.4 | Fixed |
Related Issues
No related fixes found.
Sources
We don’t republish the full GitHub discussion text. Use the links above for context.