diff --git a/.github/workflows/check-online-doc-build.yml b/.github/workflows/check-online-doc-build.yml
index d7fb9643..b009e7b8 100644
--- a/.github/workflows/check-online-doc-build.yml
+++ b/.github/workflows/check-online-doc-build.yml
@@ -7,6 +7,9 @@ permissions: {}
 on:
   pull_request:
     branches: [main]
+    paths:
+      - "**.md"
+      - "**.rst"
 
 jobs:
   build: