# Update error no pub key **URL:** \ **Category:** Install & Set-Up\ **Created:** [September 14, 2026, 6:36pm UTC](https://forum.hestiacp.com/t/update-error-no-pub-key/22211 "2026-09-14T18:36:15Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![budsicle](https://forum.hestiacp.com/letter_avatar_proxy/v4/letter/b/67e7ee/32.png) [@budsicle](https://forum.hestiacp.com/u/budsicle)\ **Post date:** [September 14, 2026, 6:36pm UTC](https://forum.hestiacp.com/t/update-error-no-pub-key/22211/1 "2026-09-14T18:36:16Z")
Using Ubuntu 24.04.4 LTS I ran apt update and got: The following signatures couldn’t be verified because the public key is not available: NO\_PUBKEY A189E93654F0B0E5 Reading package lists… Done Building dependency tree… Done Reading state information… Done 4 packages can be upgraded. Run ‘apt list --upgradable’ to see them. W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: [https://apt.hestiacp.com](https://apt.hestiacp.com) noble InRelease: The following signatures couldn’t be verified because the public key is not available: NO\_PUBKEY A189E93654F0B0E5 W: Failed to fetch [https://apt.hestiacp.com/dists/noble/InRelease](https://apt.hestiacp.com/dists/noble/InRelease) The following signatures couldn’t be verified because the public key is not available: NO\_PUBKEY A189E93654F0B0E5 W: Some index files failed to download. They have been ignored, or old ones used instead. Any idea? ---
**Author:** ![sahsanu](https://forum.hestiacp.com/user_avatar/forum.hestiacp.com/sahsanu/32/9318_2.png) [@sahsanu](https://forum.hestiacp.com/u/sahsanu)\ **Post date:** [September 14, 2026, 6:40pm UTC](https://forum.hestiacp.com/t/update-error-no-pub-key/22211/2 "2026-09-14T18:40:38Z")
Run this command and try again: ```auto curl -s "https://apt.hestiacp.com/pubkey.gpg" | gpg --dearmor | tee /usr/share/keyrings/hestia-keyring.gpg > /dev/null ``` ---
**Author:** ![budsicle](https://forum.hestiacp.com/letter_avatar_proxy/v4/letter/b/67e7ee/32.png) [@budsicle](https://forum.hestiacp.com/u/budsicle)\ **Post date:** [September 14, 2026, 7:08pm UTC](https://forum.hestiacp.com/t/update-error-no-pub-key/22211/3 "2026-09-14T19:08:46Z")
Thank you solved. ---
**Author:** ![system](https://forum.hestiacp.com/uploads/default/original/1X/d9a5b68bf50ced83e880b56452e592b204761b19.png) [@system](https://forum.hestiacp.com/u/system)\ **Post date:** [October 14, 2026, 7:08pm UTC](https://forum.hestiacp.com/t/update-error-no-pub-key/22211/4 "2026-10-14T19:08:50Z")
Closed on October 14, 2026, 7:08pm UTC This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.