I use Anaconda3 installed on my pc Win10 64bits.

I noticed it runs with an outdated scikit learn version (0.21.3), and I am trying to update it (0.24.1 available on https://repo.anaconda.com/pkgs/main/win-64/)

I do this:

1. cmd
2. I go in the script directory D:\ProgramData\Anaconda3\Scripts
3. conda update scikit-learn

it fails with this error message:

ProgramData\Anaconda3\Scripts>conda update scikit-learn
Collecting package metadata (current_repodata.json): failedCondaHTTPError: HTTP 000 CONNECTION FAILED for url <https://repo.anaconda.com/pkgs/main/win-64/current_repodata.json>
Elapsed: -An HTTP error occurred when trying to retrieve this URL.
HTTP errors are often intermittent, and a simple retry will get you on your way.If your current network has https://www.anaconda.com blocked, please file
a support request with your network engineering team.'https://repo.anaconda.com/pkgs/main/win-64'

It is my personal PC, I have access to websites: https://www.anaconda.com and https://repo.anaconda.com/pkgs/main/win-64/ from my webbrowser chrome, without any problem.

So what could be wrong here ? How can I update sucessfully ?

I can download the files from https://repo.anaconda.com by hand if necessary, but how to install it ?

First of all, you should have a look at this thread:

1. https://github.com/conda/conda/issues/9746#issuecomment-616314792. You have to copy libcrypto-1_1-x64.* and libssl-1_1-x64.* from Anaconda3\Library\bin to Anaconda3\DLLs.

If it doesn't work, you can try this:

1. Open Anaconda Prompt, it will open in this directory: (base) C:\Users\UserName>
2. Try pip to install sci-kit-learn: pip install pip --upgrade and then pip install -U scikit-learn

Let me know if this works!