Problems with recognizing MetaPhlAn version in dockerized HUMAnN?

Dear Colleagues,

I am facing a problem with the dockerized HUMAnN (biobakery/humann at docker hub).

When running humann, I am getting the below cited error stating that I used an old metaphlan version; but the file referred to in the humann call was created with MetaPhlAn version 4.0.6 (1 Mar 2023)

Traceback (most recent call last):
File “/usr/local/bin/humann”, line 11, in
load_entry_point(‘humann==3.6’, ‘console_scripts’, ‘humann’)()
File “/usr/local/lib/python3.6/dist-packages/humann/”, line 979, in main
custom_database = prescreen.create_custom_database(config.nucleotide_database, bug_file)
File “/usr/local/lib/python3.6/dist-packages/humann/search/”, line 215, in create_custom_database
config.metaphlan_v3_db_version+" or “+metaphlan_v4_db_version+” . Please update your version of MetaPhlAn to at least v3.0."
NameError: name ‘metaphlan_v4_db_version’ is not defined

Thank you!
Best wishes,