diff --git a/architecture-docs/data-model.md b/architecture-docs/data-model.md
index 9c1abb6..5ceec50 100644
--- a/architecture-docs/data-model.md
+++ b/architecture-docs/data-model.md
@@ -12,6 +12,7 @@ erDiagram
     deployed["deployed configuration"]
     staged["staged configuration"]
     token["deployment token"]
+    script["migration script"]
 
     setup }o--o{ env : offers
     setup ||--o{ operator : serves
@@ -24,5 +25,6 @@ erDiagram
     deployed |o--|| staged : compares
     deployed ||--|{ application : describes
     application ||--o{ version : follows
+    application ||--o{ script : runs
     deployed }|--o{ version : follows
 ```