diff --git a/.github/workflows/build_lint_test.yaml b/.github/workflows/build_lint_test.yaml
index 45eb346b..dd8f07bf 100644
--- a/.github/workflows/build_lint_test.yaml
+++ b/.github/workflows/build_lint_test.yaml
@@ -1,6 +1,6 @@
 name: ytld-sub build, lint, test
 
-on: [push]
+on: [pull_request]
 
 jobs:
   build: