diff --git a/.github/workflows/doc-issue.yml b/.github/workflows/doc-issue.yml
index b797ddb6c4..82c4f110c5 100644
--- a/.github/workflows/doc-issue.yml
+++ b/.github/workflows/doc-issue.yml
@@ -4,7 +4,7 @@ on:
   issues:
     types:
       - labeled
-  pull_request:
+  pull_request_target:
     types:
       - labeled
 
@@ -19,7 +19,8 @@ jobs:
           owner: GreptimeTeam
           repo: docs
           token: ${{ secrets.DOCS_REPO_TOKEN }}
-          title: Update docs for {{ github.event.issue.title }}
+          title: Update docs for ${{ github.event.issue.title || github.event.pull_request.title }}
           body: |
-            A document change request is generated from ${{ github.event.issue.html_url }}
-          assignees: ${{ github.event.issue.user.login }}
+            A document change request is generated from
+            ${{ github.event.issue.html_url || github.event.pull_request.html_url }}
+          assignees: ${{ github.event.issue.user.login || github.event.pull_request.user.login }}