diff --git a/core/MAINTAINERS.txt b/core/MAINTAINERS.txt
index f22b1d0aa2cf63a1c16dcb9d177044b48f2b3fef..376b1cf10e0c49ef1058deb4a920189c1f6bce72 100644
--- a/core/MAINTAINERS.txt
+++ b/core/MAINTAINERS.txt
@@ -105,7 +105,7 @@ Bootstrap
 
 Breakpoint
 - Peter Droogmans 'attiks' https://www.drupal.org/u/attiks
-- Marc Drummond 'mdrummond' https://www.drupal.org/u/mdrummond
+- Heather Brooke Drummond 'RainbowArray' https://www.drupal.org/u/rainbowarray
 
 Cache
 - Nathaniel Catchpole 'catch' https://www.drupal.org/u/catch
@@ -369,7 +369,7 @@ REST
 
 Responsive Image
 - Peter Droogmans 'attiks' https://www.drupal.org/u/attiks
-- Marc Drummond 'mdrummond' https://www.drupal.org/u/mdrummond
+- Heather Brooke Drummond 'RainbowArray' https://www.drupal.org/u/rainbowarray
 - Jelle Sebreghts 'Jelle_S' https://www.drupal.org/u/jelle_s
 
 Routing