diff --git a/.github/workflows/notebooks.yml b/.github/workflows/notebooks.yml
index 22d8cd5..c796543 100644
--- a/.github/workflows/notebooks.yml
+++ b/.github/workflows/notebooks.yml
@@ -1,6 +1,7 @@
 name: Run all notebooks
 
 on:
+  pull_request:
   workflow_dispatch:
     inputs:
       notebook-selector: