diff --git a/.github/workflows/dependabot-rebase.yml b/.github/workflows/dependabot-rebase.yml
index b58dbb15..0360d5fc 100644
--- a/.github/workflows/dependabot-rebase.yml
+++ b/.github/workflows/dependabot-rebase.yml
@@ -28,6 +28,8 @@ on:
     branches:
       - main
 
+  workflow_dispatch: # allow manual trigger to flush Dependabot PR queue
+
 concurrency:
   group: dependabot-update-and-merge
   cancel-in-progress: false