diff --git a/.github/workflows/keepalive.yml b/.github/workflows/keepalive.yml
index d2c5e9c7..5d17904d 100644
--- a/.github/workflows/keepalive.yml
+++ b/.github/workflows/keepalive.yml
@@ -1,17 +1,21 @@
 name: Keepalive
 
 on:
-  # At 10:50 AM UTC, on day 3 of the month
+  # At 3:15 AM UTC, on day 16 of the month
   schedule:
-    - cron: '50 10 3 * *'
+    - cron: '15 3 16 * *'
   workflow_dispatch:
 
+permissions: {}
+
 jobs:
   keepalive:
     name: Keepalive
     # Only run cron on the silverstripe account
     if: (github.event_name == 'schedule' && github.repository_owner == 'silverstripe') || (github.event_name != 'schedule')
     runs-on: ubuntu-latest
+    permissions:
+      actions: write
     steps:
       - name: Keepalive
         uses: silverstripe/gha-keepalive@v1
diff --git a/.github/workflows/merge-up.yml b/.github/workflows/merge-up.yml
index c9cc337f..5c93b12e 100644
--- a/.github/workflows/merge-up.yml
+++ b/.github/workflows/merge-up.yml
@@ -1,17 +1,22 @@
 name: Merge-up
 
 on:
-  # At 10:50 AM UTC, only on Tuesday
+  # At 3:15 AM UTC, only on Monday
   schedule:
-    - cron: '50 10 * * 2'
+    - cron: '15 3 * * 1'
   workflow_dispatch:
 
+permissions: {}
+
 jobs:
   merge-up:
     name: Merge-up
     # Only run cron on the silverstripe account
     if: (github.event_name == 'schedule' && github.repository_owner == 'silverstripe') || (github.event_name != 'schedule')
     runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      actions: write
     steps:
       - name: Merge-up
         uses: silverstripe/gha-merge-up@v1