In ~/.m2/settings.xml you can update the URL to be used for specific repositories.
For example:
<repositories> <repository> <id>codehaus-mule-repo</id> <name>codehaus-mule-repo</name> <url> https://repository-master.mulesoft.org/nexus/content/groups/public/ </url> <layout>default</layout> </repository> </repositories>