diff --git a/.github/workflows/mkdocs.yml b/.github/workflows/mkdocs.yml
index fd45e11..3ffbb73 100644
--- a/.github/workflows/mkdocs.yml
+++ b/.github/workflows/mkdocs.yml
@@ -15,6 +15,8 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
 
       - name: Setup Python
         uses: actions/setup-python@v4