Como actualizar a la version 3.0.12 gradle configuration

Hola es que tengo un problema al intentar actualizar a la version 3.0.12 por gradle configuration me sale:

Error:(31, 13) Failed to resolve: com.backendless:backendless:3.0.12, por favor si me puden colaborar gracias.

Hi, support language is English.

There is no version 3.0.12 in Maven Central yet, the latest for now is 3.0.11.

http://mvnrepository.com/artifact/com.backendless/backendless