diff --git a/README.md b/README.md
index 8549966..01c8705 100644
--- a/README.md
+++ b/README.md
@@ -89,6 +89,11 @@ or `on_calendar` to specify times for each tasks:
         enabled: true
         command: "{{ peering_manager_virtualenv_path }}/bin/python {{ peering_manager_install_directory }}/manage.py configure_routers"
         on_calendar: "*-*-* *:55:00"
+      data-sources:
+        enabled: true
+        command: "{{ peering_manager_virtualenv_path }}/bin/python {{ peering_manager_install_directory }}/manage.py datasource --all"
+        on_unit_active_sec: "30m"
+
 
 Configuration for the backend web server and systemd:
 
diff --git a/defaults/main.yml b/defaults/main.yml
index 5b8a5fb..209aa74 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -75,4 +75,4 @@ peering_manager_tasks:
   data-sources:
     enabled: true
     command: "{{ peering_manager_virtualenv_path }}/bin/python {{ peering_manager_install_directory }}/manage.py datasource --all"
-    on_calendar: "30m"
+    on_unit_active_sec: "30m"