Problem installing Manim with pip

Hi there! I want to get started with Manim, but i can't install it. When I use pip, I get the following error message:

ERROR: Could not find a version that satisfies the requirement opencv-python==3.4.2.17 (from manimlib) (from versions: 3.4.8.29, 3.4.9.31, 4.1.2.30, 4.2.0.32)
ERROR: No matching distribution found for opencv-python==3.4.2.17 (from manimlib)

I am running Python 3.8.2 on Windows 10. Reading through some other issues, I found out this could be resolved by downgrading to Python 3.7. But shouldn't Python 3.8 be backwards compatible with Python 3.7? I don't want to downgrade because I'm afraid I might mess sth else up for a different library.

Cheers!