diff --git a/docs/hardening.md b/docs/hardening.md
deleted file mode 100644
index 6869533..0000000
--- a/docs/hardening.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-title: Consider Docker security hardening practices
----
-
-TODO.
diff --git a/mkdocs.yml b/mkdocs.yml
index d99e722..062c763 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -41,7 +41,6 @@ nav:
       - Manage your app configuration: config.md
       - Manage secret data: secrets.md
       - Back-up and restore an app: backup-restore.md
-      - Consider Docker security hardening practices: hardening.md
       - Scale an app up to handle more traffic: scale.md
       - Roll an app back to a previous version: rollback.md
   - App config guide: app-config-guide.md