diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 368dd7c..cd35a40 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -1,6 +1,6 @@
 name: CI
 
-on: [push]
+on: [push, pull_request]
 
 jobs:
   build-gcc: