How can I restore my BitBucket Repository from an older version that was deployed to PROD

[leonard.jardine]

I deployed a version of a project to PROD via Bamboo several weeks ago.  There have been several changes made to the project in DEV and the current code (repo) in bitbucket builds successfully, but fails on deploy.  I would like to restore the code in BitBucket repository to be the same code that was deployed to PROD several weeks ago.  I can Re-Deploy the original "commit" code in Bamboo, but the bitbucket repository does not get updated with that original code.  Can anyone help me with this?  

thanks!