diff --git a/.github/workflows/sphinx_build.yml b/.github/workflows/sphinx_build.yml
index d3c2c28..7951f89 100644
--- a/.github/workflows/sphinx_build.yml
+++ b/.github/workflows/sphinx_build.yml
@@ -6,6 +6,8 @@ on:
   push:
     branches:
       - main
+  schedule:
+    - cron: '38 2 * * *'
 
 jobs:
   docs: