# How can I renew Let's Encrypt certificates?

This article discusses how to renew Let’s Encrypt SSL certificates that you have installed on your Droplet. It does not pertain to the Let’s Encrypt certificates that DigitalOcean [manages for load balancers](https://docs.digitalocean.com/products/networking/load-balancers/index.html.md#lets-encrypt-ssl-certificates).

Let’s Encrypt uses the client [Certbot](https://eff-certbot.readthedocs.io/en/stable/using.html) to install, manage, and automatically renew the certificates they provide. In the case where your certificate does not automatically renew on your Droplet, you can manually trigger the renewal at anytime by running:

```
sudo certbot renew
```

If you have multiple certificates for different domains and you want to renew a specific certificate, use:

```
certbot certonly --force-renew -d example.com
```

The `--force-renew` flag tells Certbot to request a new certificate with the same domains as an existing certificate. The `-d` flag allows you renew certificates for multiple specific domains.

To verify that the certificate renewed, run:

```
sudo certbot renew --dry-run
```

If the command returns no errors, the renewal was successful.

## Related Topics

[How do I fix a "system not initialized" error on multi-GPU Droplets?](https://docs.digitalocean.com/support/how-do-i-fix-a-system-not-initialized-error-on-multi-gpu-droplets/index.html.md): Make sure NVIDIA Fabric Manager is running and has the same version number as the GPU drivers.

[Why am I getting a Droplet autoscale pool error?](https://docs.digitalocean.com/support/why-am-i-getting-a-droplet-autoscale-pool-error/index.html.md): There may be an issue with the autoscale pool or Droplet configuration, the VPC network’s size, or resource limits on the team or datacenter.

[How to Troubleshoot Load Balancer Health Check Issues](https://docs.digitalocean.com/support/how-to-troubleshoot-load-balancer-health-check-issues/index.html.md): Health checks often fail due to firewalls or misconfigured backend server software.