The badge is not updated on Github after Docker image update

[alexei-led]

For some reason the badge is not updated for new Docker image. I see only "question mark" icon and link to image takes me to some github cached location. Original image URL, provided by ImageLayers works just fine. It's a GitHub image cache issue, but you need to update header you return to GitHub to make him "purge" it's cache or not to cache at all.
Here is my project's README.md