hugging face transformers not downloading based on requirements list/ pip freeze

Question

a pip freeze yields the following for hugging face transformers:

 git+https://github.com/huggingface/transformers.git@8ddbfe975264a94f124684a138a2a5ca89a2bd0d

This is creating an error when trying to download it:

ERROR: Cannot find command 'git' - do you have 'git' installed and in your PATH?
ERROR: Error [Errno 2] No such file or directory: 'git' while executing command git clone -q https://github.com/huggingface/transformers.git