diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 53157c815a..09740c4c9d 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -1,7 +1,7 @@
 name: Build documentation
 
 on:
-  push:
+  pull_request:
     paths:
       - python/**
       - docs/**