diff --git a/.drone.yml b/.drone.yml
index 81bb142..486f8ee 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -4,6 +4,9 @@ name: update_website
 steps:
    - name: hugo_build
      image: alombarte/hugo
+     when:
+        branch:
+          - main
      commands:
        - git submodule init
        - git submodule update