diff --git a/.github/workflows/sphinx_to_pages.yml b/.github/workflows/sphinx_to_pages.yml
index 92d02dc..dc7e4c8 100644
--- a/.github/workflows/sphinx_to_pages.yml
+++ b/.github/workflows/sphinx_to_pages.yml
@@ -3,7 +3,9 @@ on:
   push:
     branches:
     - main
-
+  pull_request:
+    branches: [ "main" ]
+    
 jobs:
   build:
     runs-on: ubuntu-latest