diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 44e434b9888..8ae939e15fb 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -4,6 +4,10 @@ on:
     - cron: '15 09 * * *'  # 9:15am everyday
   merge_group:
   pull_request:
+    branches:
+      - main
+    paths-ignore:
+      - '**.md'
   workflow_dispatch:
 env:
     IMAGE_REGISTRY: ghcr.io/${{ github.repository_owner }}