diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index d6ce3ff..418c7ee 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -1,6 +1,6 @@
 name: CI
 
-on: [push]
+on: [push, pull_request]
 
 jobs:
   build: