diff --git a/host-pottwal.yml b/host-pottwal.yml
index 05af3c1..4fab96d 100644
--- a/host-pottwal.yml
+++ b/host-pottwal.yml
@@ -638,6 +638,7 @@
       tags:
         - spaceapi
 
+    # Renovate configuration is sourced from `renovate.json` in each repository
     - name: Ensure renovate bot cronjob is present
       ansible.builtin.template:
         src: templates/pottwal/renovate-cron.j2
diff --git a/renovate.json b/renovate.json
index b70eae7..ec350d4 100644
--- a/renovate.json
+++ b/renovate.json
@@ -15,8 +15,10 @@
   ],
   "packageRules": [
     {
+      "matchDatasources": ["docker"],
       "matchPackageNames": ["renovate/renovate"],
-      "schedule": [ "on friday" ]
+      "schedule": [ "before 1am on friday" ],
+      "automerge": true
     }
   ]
 }