Unable to update "httplib2" module

Question

I am trying to run a script called quickstart.py on Linux. However, I get this error at line 39:

Traceback (most recent call last):
  File "quickstart.py", line 58, in <module>
    main()
  File "quickstart.py", line 39, in main
    service = build('classroom', 'v1', credentials=creds)
  File "/home/balance/.local/lib/python3.8/site-packages/googleapiclient/_helpers.py", line 131, in positional_wrapper
    return wrapped(*args, **kwargs)
  File "/home/balance/.local/lib/python3.8/site-packages/googleapiclient/discovery.py", line 321, in build
    discovery_http.close()
AttributeError: 'Http' object has no attribute 'close'

I did a bit of reasurching, and it seams like the issue is related to the httplib2 module (Link here). However, updating the module using pip and pip3 doesn't work. I tried a variety of things, but none of them work. It won't update past version 0.14.0, even though the current version, according to pip_search since pip search is broken, is 0.20.4 The things I tried are:

pip3 install httplib2

Requirement already satisfied: httplib2 in /usr/lib/python3/dist-packages (0.14.0)

pip3 install httplib2==0.20.4

Collecting httplib2==0.20.4
  Using cached httplib2-0.20.4-py3-none-any.whl (96 kB)
Requirement already satisfied: pyparsing!=3.0.0,!=3.0.1,!=3.0.2,!=3.0.3,<4,>=2.4.2; python_version > "3.0" in /home/balance/.local/lib/python3.8/site-packages (from httplib2==0.20.4) (3.0.7)
Installing collected packages: httplib2
Successfully installed httplib2-0.20.4

When I checked httplib2's version, it was still 0.14.0

I also did sudo apt update && sudo apt upgrade, but that didn't do anything.

When checking Stackoverflow, the only other question is one with no answers (Link Here). Can somebody please tell me why I can't update this module?