diff --git a/runbooks/config/tech-docs.yml b/runbooks/config/tech-docs.yml
index 9fb43357..eaff6eac 100644
--- a/runbooks/config/tech-docs.yml
+++ b/runbooks/config/tech-docs.yml
@@ -36,6 +36,7 @@ prevent_indexing: true
 
 show_contribution_banner: true
 github_repo: ministryofjustice/cloud-platform
+github_branch: "main"
 
 owner_slack_workspace: mojdt
 default_owner_slack: '#cloud-platform'