diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4cd245b94..fb0f43ea0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,7 @@ The following sections list the changes in ocis-thumbnails unreleased.
 
 * Change - Add more default resolutions: [#23](https://github.com/owncloud/ocis-thumbnails/issues/23)
 * Change - Refactor code to remove code smells: [#21](https://github.com/owncloud/ocis-thumbnails/issues/21)
+* Change - Use micro service error api: [#31](https://github.com/owncloud/ocis-thumbnails/issues/31)
 * Enhancement - Limit users to access own thumbnails: [#5](https://github.com/owncloud/ocis-thumbnails/issues/5)
 
 ## Details
@@ -27,6 +28,13 @@ The following sections list the changes in ocis-thumbnails unreleased.
    https://github.com/owncloud/ocis-thumbnails/issues/21
 
 
+* Change - Use micro service error api: [#31](https://github.com/owncloud/ocis-thumbnails/issues/31)
+
+   The service now also returns a status code when an error occurs.
+
+   https://github.com/owncloud/ocis-thumbnails/issues/31
+
+
 * Enhancement - Limit users to access own thumbnails: [#5](https://github.com/owncloud/ocis-thumbnails/issues/5)
 
    Users of the service can no longer request thumbnails of another users by guessing the etag. The