diff --git a/.github/workflows/deploy.yaml b/.github/workflows/deploy.yaml
index 6e18495..1e7b4bb 100644
--- a/.github/workflows/deploy.yaml
+++ b/.github/workflows/deploy.yaml
@@ -7,6 +7,7 @@ permissions:
   id-token: write
 
 on:
+  workflow_dispatch:
   push:
     paths:
       - 'book/**'