According to the docs:

In order to get the latest versions of the dependencies and to update the poetry.lock file, you should use the update command.
poetry update: resolve all dependencies of the project and write the exact versions into poetry.lock.

I ran poetry update in my project and nothing happened because I already ran it before.

But when I ran poetry update jupyterlab-server, then

Updating jupyterlab-server (1.2.0 -> 2.10.3)

As I understand, poetry tried to update the package to the latest possible version permitted by the constraint in the pyproject.toml. It also did “Resolving dependencies” as well.

My question is why poetry update did not update jupyterlab-server to the latest 2.10.3 as it claimed? Why stop at 1.2.0?