diff --git a/migration.txt b/migration.md
similarity index 96%
rename from migration.txt
rename to migration.md
index 84075bc..3e3d4cf 100644
--- a/migration.txt
+++ b/migration.md
@@ -8,6 +8,7 @@
   - [x] check whether applications connect via externalName to mosquitto
   - [x] delete broker namespace and re-deploy externalName including namespace
   - [x] delete helm chart emqx
+  - [x] delete DNS name dashboard.broker.hottis.de
 
 ## Second step: