diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 639e18d..07719c7 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -1,6 +1,9 @@
 name: Python package
 
-on: [push]
+on:
+  push:
+    branches: [master]
+  pull_request: {}
 
 jobs:
   build: