# News: Important: Specification change to API

Important: Specification change to API

We will be making changes to the specifications of an API on the LINE Login Platform.

[API]
https://api.line.me/v1/oauth/accessToken

[Changes]

The expires_in value will be displayed in seconds instead of milliseconds.

It will be possible to refresh tokens before they expire. Currently, an error will occur when you refresh a token before it has expired.


[Reason]

To comply with OAuth2 specifications.


[Date and Time]
16:00 on September 14, 2015