diff --git a/.github/workflows/data.yml b/.github/workflows/data.yml
index 115d84a79..f86c2942d 100644
--- a/.github/workflows/data.yml
+++ b/.github/workflows/data.yml
@@ -10,6 +10,7 @@ on:
         type: boolean
         required: false
         default: true
+  pull_request:
 
 jobs:
   download_webbpsf_data: