diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f028b62..166cad1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -2,6 +2,7 @@ name: Continuous integration
 
 on:
   push:
+  pull_request:
 
 jobs:
   check: