Instagram is to follow the lead of other social networks by introducing an algorithm which will decide what order posts appear in each user's news feed.
The move is likely to annoy some users who prefer the current presentation of content in reverse chronological order.
The picture and video sharing app says it is making the changes because people miss on average 70 per cent of their feeds.
In a blog post it says the growth in popularity of the platform means it is harder for its users to keep up with all the photos and videos people share.
The Facebook owned company says the changes will mean users feeds "will soon be ordered to show the moments we believe you will care about the most."
The order will be dictated by a number of factors, including the likelihood the user will be interested in the content, their relationship with the person posting and the timeliness of the post.
Twitter recently irked some users by announcing a similar change, although in its case users can opt out of the new format.
Facebook has been using a similar system based around an algorithim for some time.
Instagram says the changes will be implemented in the coming months.
"We’re going to take time to get this right and listen to your feedback along the way," it said.