diff --git a/.github/workflows/call-invalid-issues-cron.yml b/.github/workflows/call-invalid-issues-cron.yml
index 8c1aead..017f233 100644
--- a/.github/workflows/call-invalid-issues-cron.yml
+++ b/.github/workflows/call-invalid-issues-cron.yml
@@ -1,5 +1,6 @@
 name: Mark stale issues and pull requests
 on:
+  workflow_dispatch:
   schedule:
     - cron: "30 1 * * *"