diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6f412ef1a210f5cf509489d7145cc0214b913c76..9a9465bf91c00370885b2d3a8bce7a0bfe6649f1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,5 +1,5 @@
 name: Continuous integration
-on: [ push ]
+on: [ push, pull_request ]
 jobs:
   tests:
     strategy: