Changing a dependency in pyproject.toml and poetry.lock does not get updated in bazel

[ruidc]

in my pyproject.toml

...
[tool.poetry.dependencies]
python = "3.7.6"
click = "7.1.1"
...

and my BUILD:

load("@rules_python//python:defs.bzl", "py_test")
load("@solution_pip//:requirements.bzl", "requirement")

py_test(
    name = "test_example",
    srcs = ["test_example.py"],
    deps = [
        requirement("click"),
    ],
)

and my test_example.py:

import sys
import unittest
import click

class TestExample(unittest.TestCase):
    def test_version(self):
        assert (platform.python_version() == "3.7.6")
        print(os.getcwd())
        print(sys.executable)
        print(click.__version__)
        assert ('poetry' in sys.executable)
        assert (click.__version__ == "7.1.1")
        # self.assertEqual(True, False)


if __name__ == '__main__':
    unittest.main()

running bazel test //packages/example/test:test_example
works fine, updating click to 7.1.2 via poetry update sets the lockfile and toml correctly, but in the temp directory created by bazel, it doesn't update where I would have expected it to do so.