How to solve the problem of installing graphene-django in pipenv?

Question

Django

There is pipenv and Pipfile with content

name = "pypi"
url = "https://pypi.org/simple"
verify_ssl = true

[dev-packages]

[packages]
django = ">=1.11.0"
"psycopg2-binary" = ">=2.7"
graphene-django = ">=2.2"

[requires]
python_version = "3.6"

I get an error when I run pipenv install

Pipfile.lock (4284de) out of date, updating to (344ef4)…
Locking [dev-packages] dependencies…
Locking [packages] dependencies…
✔ Success! 
Updated Pipfile.lock (4284de)!
Installing dependencies from Pipfile.lock (4284de)…
     ▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉▉ 11/11 — 00:00:13
(cube_sync_back) [email protected]:~/cube_sync_back$ pipenv install
Pipfile.lock (d9615f) out of date, updating to (4284de)…
Locking [dev-packages] dependencies…
Locking [packages] dependencies…
✘ Locking Failed! 
[pipenv.exceptions.ResolutionFailure]:   File "/home/ivan/.local/lib/python3.6/site-packages/pipenv/resolver.py", line 69, in resolve
[pipenv.exceptions.ResolutionFailure]:       req_dir=requirements_dir
[pipenv.exceptions.ResolutionFailure]:   File "/home/ivan/.local/lib/python3.6/site-packages/pipenv/utils.py", line 726, in resolve_deps
[pipenv.exceptions.ResolutionFailure]:       req_dir=req_dir,
[pipenv.exceptions.ResolutionFailure]:   File "/home/ivan/.local/lib/python3.6/site-packages/pipenv/utils.py", line 480, in actually_resolve_deps
[pipenv.exceptions.ResolutionFailure]:       resolved_tree = resolver.resolve()
[pipenv.exceptions.ResolutionFailure]:   File "/home/ivan/.local/lib/python3.6/site-packages/pipenv/utils.py", line 395, in resolve
[pipenv.exceptions.ResolutionFailure]:       raise ResolutionFailure(message=str(e))
[pipenv.exceptions.ResolutionFailure]:       pipenv.exceptions.ResolutionFailure: ERROR: ERROR: Could not find a version that matches aniso8601<8.0.0,<=6.0.*,>=3,>=7.0.0
[pipenv.exceptions.ResolutionFailure]:       Tried: 0.48, 0.49, 0.50, 0.60, 0.70, 0.80, 0.81, 0.82, 0.83, 0.84, 0.85, 0.90, 0.91, 0.92, 1.0.0, 1.1.0, 1.2.0, 1.2.1, 1.3.0, 2.0.0, 2.0.1, 2.0.1, 3.0.0, 3.0.0, 3.0.2, 3.0.2, 4.0.0, 4.0.0, 4.0.1, 4.0.1, 4.1.0, 4.1.0, 5.0.0, 5.0.0, 5.0.1, 5.0.1, 5.1.0, 5.1.0, 6.0.0, 6.0.0, 7.0.0, 7.0.0
[pipenv.exceptions.ResolutionFailure]: Warning: Your dependencies could not be resolved. You likely have a mismatch in your sub-dependencies.
  First try clearing your dependency cache with $ pipenv lock --clear, then try the original command again.
 Alternatively, you can use $ pipenv install --skip-lock to bypass this mechanism, then run $ pipenv graph to inspect the situation.
  Hint: try $ pipenv lock --pre if it is a pre-release dependency.
ERROR: ERROR: Could not find a version that matches aniso8601<8.0.0,<=6.0.*,>=3,>=7.0.0
Tried: 0.48, 0.49, 0.50, 0.60, 0.70, 0.80, 0.81, 0.82, 0.83, 0.84, 0.85, 0.90, 0.91, 0.92, 1.0.0, 1.1.0, 1.2.0, 1.2.1, 1.3.0, 2.0.0, 2.0.1, 2.0.1, 3.0.0, 3.0.0, 3.0.2, 3.0.2, 4.0.0, 4.0.0, 4.0.1, 4.0.1, 4.1.0, 4.1.0, 5.0.0, 5.0.0, 5.0.1, 5.0.1, 5.1.0, 5.1.0, 6.0.0, 6.0.0, 7.0.0, 7.0.0
There are incompatible versions in the resolved dependencies.
[pipenv.exceptions.ResolutionFailure]:       req_dir=requirements_dir
[pipenv.exceptions.ResolutionFailure]:   File "/home/ivan/.local/lib/python3.6/site-packages/pipenv/utils.py", line 726, in resolve_deps
[pipenv.exceptions.ResolutionFailure]:       req_dir=req_dir,
[pipenv.exceptions.ResolutionFailure]:   File "/home/ivan/.local/lib/python3.6/site-packages/pipenv/utils.py", line 480, in actually_resolve_deps
[pipenv.exceptions.ResolutionFailure]:       resolved_tree = resolver.resolve()
[pipenv.exceptions.ResolutionFailure]:   File "/home/ivan/.local/lib/python3.6/site-packages/pipenv/utils.py", line 395, in resolve
[pipenv.exceptions.ResolutionFailure]:       raise ResolutionFailure(message=str(e))
[pipenv.exceptions.ResolutionFailure]:       pipenv.exceptions.ResolutionFailure: ERROR: ERROR: Could not find a version that matches aniso8601<8.0.0,<=6.0.*,>=3,>=7.0.0
[pipenv.exceptions.ResolutionFailure]:       Tried: 0.48, 0.49, 0.50, 0.60, 0.70, 0.80, 0.81, 0.82, 0.83, 0.84, 0.85, 0.90, 0.91, 0.92, 1.0.0, 1.1.0, 1.2.0, 1.2.1, 1.3.0, 2.0.0, 2.0.1, 2.0.1, 3.0.0, 3.0.0, 3.0.2, 3.0.2, 4.0.0, 4.0.0, 4.0.1, 4.0.1, 4.1.0, 4.1.0, 5.0.0, 5.0.0, 5.0.1, 5.0.1, 5.1.0, 5.1.0, 6.0.0, 6.0.0, 7.0.0, 7.0.0
[pipenv.exceptions.ResolutionFailure]: Warning: Your dependencies could not be resolved. You likely have a mismatch in your sub-dependencies.
  First try clearing your dependency cache with $ pipenv lock --clear, then try the original command again.
 Alternatively, you can use $ pipenv install --skip-lock to bypass this mechanism, then run $ pipenv graph to inspect the situation.
  Hint: try $ pipenv lock --pre if it is a pre-release dependency.
ERROR: ERROR: Could not find a version that matches aniso8601<8.0.0,<=6.0.*,>=3,>=7.0.0
Tried: 0.48, 0.49, 0.50, 0.60, 0.70, 0.80, 0.81, 0.82, 0.83, 0.84, 0.85, 0.90, 0.91, 0.92, 1.0.0, 1.1.0, 1.2.0, 1.2.1, 1.3.0, 2.0.0, 2.0.1, 2.0.1, 3.0.0, 3.0.0, 3.0.2, 3.0.2, 4.0.0, 4.0.0, 4.0.1, 4.0.1, 4.1.0, 4.1.0, 5.0.0, 5.0.0, 5.0.1, 5.0.1, 5.1.0, 5.1.0, 6.0.0, 6.0.0, 7.0.0, 7.0.0
There are incompatible versions in the resolved dependencies.

I tried to completely remove the environment and even reinstalled pipenv, but the error could not be fixed.
What are the options for resolving this conflict? OS ubuntu 18.04