diff --git a/bundle.yaml b/bundle.yaml
index 87c79ca6cc38df5e58304db96f6a77218076750c..eb3555eabdd179c97d9fdca7bc6c456f56c33006 100644
--- a/bundle.yaml
+++ b/bundle.yaml
@@ -1,7 +1,5 @@
-series:
-- xenial
-- bionic
-applications:
+series: xenial
+services:
   drupal:
     charm: "cs:~csd-garr/drupal7"
     num_units: 1