diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c8ce964..288612a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,5 +1,5 @@
 name: CI
-on: [push]
+on: [push, pull_request]
 jobs:
   test-ubuntu:
     runs-on: ubuntu-latest