diff --git a/.github/workflows/build-samples.yml b/.github/workflows/build-samples.yml
index 1896c341df..98814b2e16 100644
--- a/.github/workflows/build-samples.yml
+++ b/.github/workflows/build-samples.yml
@@ -1,6 +1,10 @@
 name: Build Samples
 
-on: push
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
 
 jobs:
   build: