diff --git a/.github/workflows/gh-pages.yml b/.github/workflows/gh-pages.yml
index 6850b560885..0adc1109124 100644
--- a/.github/workflows/gh-pages.yml
+++ b/.github/workflows/gh-pages.yml
@@ -47,6 +47,9 @@ jobs:
     steps:
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
       - uses: actions/checkout@v3
+        with:
+          # if your default branches is not master, please change it here
+          ref: master
 
       - name: Cache Data Files
         if: inputs.save_data_in_github_cache