diff --git a/.github/workflows/deploy_preview.yml b/.github/workflows/deploy_preview.yml
index 588d0b37919..b6c869b59de 100644
--- a/.github/workflows/deploy_preview.yml
+++ b/.github/workflows/deploy_preview.yml
@@ -1,6 +1,8 @@
 name: Deploy Preview
 on:
   workflow_run:
+    branches:
+      - main
     workflows: ['CI']
     types:
       - completed