Skip to content

501 HTTPS Required error downloading from Central Repository⚓︎


I am receiving the following response upon making requests to The Central Repository:

Error 501 HTTPS Required.
More information at

How do I satisfy this requirement so that I may regain access to Central?


As of January 15, 2020, The Central Repository no longer supports insecure communication over HTTP and requires that all requests to the repository are encrypted over HTTPS.

If you're receiving this error, then you need to replace all URL references to Maven Central with their canonical HTTPS counterparts or

If for any reason your environment cannot support HTTPS, you have the option of using our dedicated insecure endpoint

For further context around the move to HTTPS, please see