How to display video thumbnail in Facebook post

Hello – this seems like it might be a common problem.

When posting a link to a blog post with an embedded youtube video to facebook, the thumbnail of the video does not currently display in the facebook post. Is there a way to make this happen?

For reference, this is the post with the video: https://higher-ground.lauraschoppa.com/2012/12/c360-challengept2-heavy-rope-jumps/

thanks for any info.

– Laura