diff --git a/.github/workflows/auto-tag.yml b/.github/workflows/auto-tag.yml
index 32801df..8d7002f 100644
--- a/.github/workflows/auto-tag.yml
+++ b/.github/workflows/auto-tag.yml
@@ -4,10 +4,15 @@ on:
     tags:
       - '*.*.*'
   workflow_dispatch:
+
+permissions: {}
+
 jobs:
   auto-tag:
     name: Auto-tag
     runs-on: ubuntu-latest
+    permissions:
+      contents: write
     steps:
       - name: Auto-tag
         uses: silverstripe/gha-auto-tag@v1
diff --git a/.github/workflows/keepalive.yml b/.github/workflows/keepalive.yml
index 2328359..1875a06 100644
--- a/.github/workflows/keepalive.yml
+++ b/.github/workflows/keepalive.yml
@@ -1,17 +1,21 @@
 name: Keepalive
 
 on:
-  # At 3:15 PM UTC, on day 24 of the month
+  # At 9:45 PM UTC, on day 18 of the month
   schedule:
-    - cron: '15 15 24 * *'
+    - cron: '45 21 18 * *'
   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
deleted file mode 100644
index 79209ba..0000000
--- a/.github/workflows/merge-up.yml
+++ /dev/null
@@ -1,17 +0,0 @@
-name: Merge-up
-
-on:
-  # At 3:15 PM UTC, only on Tuesday
-  schedule:
-    - cron: '15 15 * * 2'
-  workflow_dispatch:
-
-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
-    steps:
-      - name: Merge-up
-        uses: silverstripe/gha-merge-up@v1