diff --git a/.github/workflows/web-api.yml b/.github/workflows/web-api.yml
index 90b81dd233..10ef584e8e 100644
--- a/.github/workflows/web-api.yml
+++ b/.github/workflows/web-api.yml
@@ -4,6 +4,7 @@ on:
   workflow_run:
     workflows:
       - Preflight
+    branches: [master]
     types:
       - completed