diff --git a/tools/devops/automation/build-pull-request.yml b/tools/devops/automation/build-pull-request.yml
index 9aaaebac4398..b6e7f76620cf 100644
--- a/tools/devops/automation/build-pull-request.yml
+++ b/tools/devops/automation/build-pull-request.yml
@@ -48,6 +48,8 @@ variables:
 - name: Packaging.EnableSBOMSigning
   value: false
 
+trigger: none
+
 pr:
   autoCancel: true
   branches: