diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f6f7201d..5464a7b7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,5 +1,5 @@
 name: ci
-on: [push]
+on: [push, pull_request]
 jobs:
   build-and-run-unit-tests:
     runs-on: ubuntu-latest