diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 08d4f45..5f9e1d8 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -1,5 +1,5 @@
 name: CI
-on: push
+on: [ push, pull_request ]
 jobs:
   unit-test:
     runs-on: ubuntu-latest