diff --git a/.github/workflows/copilot-build-backend.yml b/.github/workflows/copilot-build-backend.yml
index bdb4690e1..e19d02090 100644
--- a/.github/workflows/copilot-build-backend.yml
+++ b/.github/workflows/copilot-build-backend.yml
@@ -3,7 +3,7 @@ name: copilot-build-backend
 on:
   workflow_dispatch:
   pull_request:
-    branches: ["main"]
+    branches: ["main-email"]
     paths:
       - "webapi/**"
   workflow_call: