diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 9a4d988..b3e77ff 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -1,9 +1,13 @@
 name: deploy
 on:
-  push:
-    branches: master
+  pull_request_target:
+    types: closed
+permissions:
+  id-token: write
+  contents: read
 jobs:
-  build:
+  deploy:
+    if: github.event.pull_request.merged == true
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1