diff --git a/.gitea/workflows/build.yaml b/.gitea/workflows/build.yaml
index 7a26ca5..bd304ad 100644
--- a/.gitea/workflows/build.yaml
+++ b/.gitea/workflows/build.yaml
@@ -59,7 +59,7 @@ jobs:
           ls mapbook
       - name: Build sitemap
         run: |
-          python mapbook/build.py
+          python3 mapbook/build.py
       - name: Check book
         run: ls book
       - name: Upload