diff --git a/.github/workflows/publish.yaml b/.github/workflows/publish.yaml
index 0798b54..6798245 100644
--- a/.github/workflows/publish.yaml
+++ b/.github/workflows/publish.yaml
@@ -13,6 +13,8 @@ jobs:
     steps:
       - name: Checkout Quarto Book
         uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
 
       - name: Checkout Pythia Book
         uses: actions/checkout@v4