diff --git a/docs/contributing/stacks.md b/docs/contributing/stacks.md
index 62140141..fe8a27bf 100644
--- a/docs/contributing/stacks.md
+++ b/docs/contributing/stacks.md
@@ -89,6 +89,7 @@ The cookiecutter template comes with a `.github/workflows/docker.yml` file, whic
    push:
       branches:
          - master
+         - main
       paths-ignore:
          - "*.md"
          - "binder/**"