diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index a8e9662..1447b85 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -1,15 +1,14 @@
 name: backend
 
 on:
-  push:
-    branches:
-      - release
   pull_request:
+    types: [ closed ]
     branches:
       - dev
 
 jobs:
   build-and-test:
+    if: github.event.pull_request.merged == true
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code