pack.yaml dependencies not working for gt\lt only for eq

Trying to install a pack with one dependency:
st2 3.4.1, on Python 3.6.9
Relevant doc: pack-dependencies
dependencies in pack.yaml:

dependencies:
  - some_pack>=1.1.1

Full output:

{
  "output": {
    "packs_list": [
      "main_pack"
    ],
    "message": "",
    "conflict_list": [],
    "warning_list": null
  },
  "errors": [
    {
      "type": "error",
      "message": "Execution failed. See result for details.",
      "task_id": "download_pack",
      "result": {
        "stdout": "",
        "stderr": "Traceback (most recent call last):\n  File \"/opt/stackstorm/st2/lib/python3.6/site-packages/python_runner/python_action_wrapper.py\", line 334, in <module>\n    obj.run()\n  File \"/opt/stackstorm/st2/lib/python3.6/site-packages/python_runner/python_action_wrapper.py\", line 193, in run\n    output = action.run(**self._parameters)\n  File \"/opt/stackstorm/packs/packs/actions/pack_mgmt/download.py\", line 89, in run\n    return self._validate_result(result=result, repo_url=pack_url)\n  File \"/opt/stackstorm/packs/packs/actions/pack_mgmt/download.py\", line 110, in _validate_result\n    raise Exception(message)\nException: The pack has not been downloaded from \"None\".\n\nErrors:\nNo record of the \"some_pack>\" pack in the index.\n",
        "exit_code": 1,
        "result": "None"
      }
    }
  ]
}

Full output in CLI:

        [ succeeded ] init_task
        [ succeeded ] download_pack
        [ succeeded ] make_a_prerun
        [ succeeded ] get_pack_dependencies
        [ succeeded ] check_dependency_and_conflict_list
        [  failed   ] download_pack

id: 610ab23bb9c6ebf292ba7a83
action.ref: packs.install
parameters:
  packs:
  - main_pack=dependencies_check
status: failed
start_timestamp: Wed, 04 Aug 2021 15:28:58 UTC
end_timestamp: Wed, 04 Aug 2021 15:29:16 UTC
result:
  errors:
  - message: Execution failed. See result for details.
    result:
      exit_code: 1
      result: None
      stderr: "Traceback (most recent call last):
  File "/opt/stackstorm/st2/lib/python3.6/site-packages/python_runner/python_action_wrapper.py", line 334, in <module>
    obj.run()
  File "/opt/stackstorm/st2/lib/python3.6/site-packages/python_runner/python_action_wrapper.py", line 193, in run
    output = action.run(**self._parameters)
  File "/opt/stackstorm/packs/packs/actions/pack_mgmt/download.py", line 89, in run
    return self._validate_result(result=result, repo_url=pack_url)
  File "/opt/stackstorm/packs/packs/actions/pack_mgmt/download.py", line 110, in _validate_result
    raise Exception(message)
Exception: The pack has not been downloaded from "None".

Errors:
No record of the "some_pack>" pack in the index.
"
      stdout: ''
    task_id: download_pack
    type: error
  output:
    conflict_list: []
    message: ''
    packs_list:
    - main_pack
    warning_list: null
+--------------------------+------------------------+----------------------+----------------------+------------------+
| id                       | status                 | task                 | action               | start_timestamp  |
+--------------------------+------------------------+----------------------+----------------------+------------------+
| 610ab2419daca84b6f154059 | succeeded (0s elapsed) | init_task            | core.noop            | Wed, 04 Aug 2021 |
|                          |                        |                      |                      | 15:29:05 UTC     |
| 610ab2429daca84b6f154069 | succeeded (5s elapsed) | download_pack        | packs.download       | Wed, 04 Aug 2021 |
|                          |                        |                      |                      | 15:29:06 UTC     |
| 610ab2479daca84b6f154079 | succeeded (1s elapsed) | make_a_prerun        | packs.virtualenv_pre | Wed, 04 Aug 2021 |
|                          |                        |                      | run                  | 15:29:11 UTC     |
| 610ab2489daca84b6f154089 | succeeded (1s elapsed) | get_pack_dependencie | packs.get_pack_depen | Wed, 04 Aug 2021 |
|                          |                        | s                    | dencies              | 15:29:12 UTC     |
| 610ab2499daca84b6f154099 | succeeded (1s elapsed) | check_dependency_and | core.noop            | Wed, 04 Aug 2021 |
|                          |                        | _conflict_list       |                      | 15:29:13 UTC     |
| 610ab24a9daca84b6f1540a9 | failed (2s elapsed)    | download_pack        | packs.download       | Wed, 04 Aug 2021 |
|                          |                        |                      |                      | 15:29:14 UTC     |
+--------------------------+------------------------+----------------------+----------------------+------------------+