diff --git a/.github/workflows/doc_preview.yml b/.github/workflows/doc_preview.yml
index ca940dc..41af602 100644
--- a/.github/workflows/doc_preview.yml
+++ b/.github/workflows/doc_preview.yml
@@ -6,6 +6,7 @@ name: Preview
 
 on:
   pull_request_target:
+    types: [opened, synchronize, reopened, closed]
   workflow_dispatch:
 
 concurrency: