diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4a3be7b..e8b8064 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,5 +1,5 @@
 name: CI
-on: push
+on: [push, pull_request]
 jobs:
   lint:
     name: Code Formatting