diff --git a/core/MAINTAINERS.txt b/core/MAINTAINERS.txt
index 42601e2a94cd32d120430e86723b964c8f1a0669..8874b0e73d0fd8772f94d9a84856cdebf69baf27 100644
--- a/core/MAINTAINERS.txt
+++ b/core/MAINTAINERS.txt
@@ -478,6 +478,10 @@ API-first Initiative
 - Wim Leers 'Wim Leers' https://www.drupal.org/u/wim-leers
 - Mateu Aguiló Bosch 'e0ipso' https://www.drupal.org/u/e0ipso
 
+  Provisional membership:
+  - Len Swaneveld 'Lendude' https://www.drupal.org/u/lendude
+  - Michiel Nugter 'michielnugter' https://www.drupal.org/u/michielnugter
+
 Layout Initiative
 - Tim Plunkett 'tim.plunkett' https://www.drupal.org/u/tim.plunkett
 - Emilie Nouveau 'DyanneNova' https://www.drupal.org/u/dyannenova