diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 56618fb8cf..ace2b7e8e0 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -242,6 +242,7 @@ jobs:
 
   upload:
     name: Upload artifacts to google bucket
+    if: github.event_name == 'push' || github.event.pull_request.head.repo.full_name == github.repository
     permissions:
       contents: "read"
       id-token: "write"