diff --git a/.github/workflows/Delete_Old_Workflow_Runs.yml b/.github/workflows/Delete_Old_Workflow_Runs.yml
index 0b1d48cc..88755434 100644
--- a/.github/workflows/Delete_Old_Workflow_Runs.yml
+++ b/.github/workflows/Delete_Old_Workflow_Runs.yml
@@ -1,37 +1,25 @@
 name: Delete old workflow runs
 on:
-  workflow_dispatch:
-    inputs:
-      days:
-        description: 'Number of days.'
-        required: true
-        default: 30
-      minimum_runs:
-        description: 'The minimum runs to keep for each workflow.'
-        required: true
-        default: 6
-      delete_workflow_pattern:
-        description: 'The name or filename of the workflow. if not set then it will target all workflows.'
-        required: false
-        default: 'Nightly_Build.yml'
-      delete_workflow_by_state_pattern:
-        description: 'Remove workflow by state: active, deleted, disabled_fork, disabled_inactivity, disabled_manually'
-        required: false
-      dry_run:
-        description: 'Only log actions, do not perform any delete operations.'
-        required: false
+  schedule:
+    - cron: '0 0 * * *'
 
 jobs:
   del_runs:
     runs-on: ubuntu-latest
     steps:
-      - name: Delete workflow runs
+      - name: Delete Nightly Build
         uses: Mattraks/delete-workflow-runs@v2
         with:
           token: ${{ github.token }}
           repository: ${{ github.repository }}
-          retain_days: ${{ github.event.inputs.days }}
-          keep_minimum_runs: ${{ github.event.inputs.minimum_runs }}
-          delete_workflow_pattern: ${{ github.event.inputs.delete_workflow_pattern }}
-          delete_workflow_by_state_pattern: ${{ github.event.inputs.delete_workflow_by_state_pattern }}
-          dry_run: ${{ github.event.inputs.dry_run }}
\ No newline at end of file
+          retain_days: 7
+          keep_minimum_runs: 6
+          delete_workflow_pattern: 'Nightly Build'
+      - name: Delete Self
+        uses: Mattraks/delete-workflow-runs@v2
+        with:
+          token: ${{ github.token }}
+          repository: ${{ github.repository }}
+          retain_days: 1
+          keep_minimum_runs: 1
+          delete_workflow_pattern: 'Delete old workflow runs'
\ No newline at end of file