deprecated get_data()

[jbmandeville]

I installed anaconda with standard conda additions (conda install -c conda-forge ...).
When I try to run the BET, I get an error message:
"nibabel.deprecator.ExpiredDeprecationError: get_data() is deprecated in favor of get_fdata(), which has a more predictable return type..."

A web discussion suggested down-grading to nibble 5.0, but I don't see a version. Do you have a work-around for this?

Thanks (Joe Mandeville)