diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 92b14aa9..b7297a8b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,6 +1,8 @@
 name: CI
 
-on: push
+on:
+    - push
+    - pull_request
 
 # As long as we use local actions, checkout should be made in workflow before
 # and not in the local actions. Otherwise, no action file found.