# 2d sprite topples over due to circle collider

I am completely new to unity nd was trying to create a simple 2d platformer. I a trying to use a box collider and a circle collider for my Player. I am using circle collider because I have heard it helps more accurate collision detection for a player. The problem is that my player topples over when it falls to ground. Please tell me if there is any fix for my problem.

On the RigidBody2D component of your character, expand the Constraints dropdown. Here you can freeze your character's rotation around the Z-axis to prevent your character from falling.