diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index ad9e48c..5d360d8 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,6 +1,6 @@
 name: build
 
-on: push
+on: [push, pull_request]
 
 jobs:
   test: