diff --git a/.github/workflows/appengine-deploy.yml b/.github/workflows/appengine-deploy.yml
index 3370e5f..c099a3d 100644
--- a/.github/workflows/appengine-deploy.yml
+++ b/.github/workflows/appengine-deploy.yml
@@ -4,6 +4,7 @@ on:
   push:
     branches:
       - main
+  workflow_dispatch:
 
 jobs:
   deploy: