diff --git a/.github/workflows/pytest.yml b/.github/workflows/pytest.yml
index 042f6a5..e3d2dd7 100644
--- a/.github/workflows/pytest.yml
+++ b/.github/workflows/pytest.yml
@@ -1,6 +1,8 @@
 name: Run Python tests
 
-on: [push]
+on:
+  push:
+  pull_request:
 
 jobs:
   build: