diff --git a/.github/workflows/wheels.yml b/.github/workflows/wheels.yml
index 5aa0dc49ff..25ac37cec8 100644
--- a/.github/workflows/wheels.yml
+++ b/.github/workflows/wheels.yml
@@ -1,6 +1,7 @@
 name: Wheels
 
-on: workflow_dispatch
+on:
+  pull_request:
 
 jobs:
   make_sdist: