Mopish wants to install external version

Whenever I try to update my condo installation, it keeps trying to make the change:

The following packages will be SUPERSEDED by a higher-priority channel:

  mpich               conda-forge::mpich-3.4.3-hd33e60e_101 --> pkgs/main::mpich-3.3.2-external_0 

I don’t have an separate MPI installation, so I don’t know why this is happening or how to control it.