pipenv --update fails with SemVer violation

Running pipenv --update (with pipenv 9.0.0) fails with an error like the following:

ValueError: 11.10.1.dev5 is not valid SemVer string

This is presumably due to the release of dev versions of v11.10.1 over the last few days. Multiple runs of the command will fail on different dev versions. (I believe the problem is that, according to SemVer spec item 9, pre-release data should be separated by a hyphen, not a dot; thus the above version should be 11.10.1-dev.5.)

[NBR-hugh]

Thanks. BTW,This command was not deleted from the help info,which may need adjust.

Options:
  --update         Update Pipenv & pip to latest.
  --where          Output project home information.
  --venv           Output virtualenv information.
  --py             Output Python interpreter information.
  --envs           Output Environment Variable options.
  --rm             Remove the virtualenv.
  --bare           Minimal output.
  --completion     Output completion (to be eval'd).
  --man            Display manpage.
  --three / --two  Use Python 3/2 when creating virtualenv.
  --python TEXT    Specify which version of Python virtualenv should use.
  --site-packages  Enable site-packages for the virtualenv.
  --version        Show the version and exit.
  -h, --help       Show this message and exit.

[techalchemy]

This command doesn’t work. We deleted it from pipenv. Please upgrade using pip, the same way you installed pipenv in the first place