diff --git a/API-Reference.md b/API-Reference.md
index d79b718..70edb66 100644
--- a/API-Reference.md
+++ b/API-Reference.md
@@ -50,8 +50,8 @@ List all departments.
 **Response:**
 ```json
 [
-  {"id": 1, "code": "ENG", "name": "Engineering", "cost_center": "idk", "active": true},
-  {"id": 2, "code": "MKT", "name": "Marketing", "cost_center": "idk", "active": true}
+  {"id": 1, "code": "ENG", "name": "Engineering", "cost_center": "CC-1100", "active": true},
+  {"id": 2, "code": "MKT", "name": "Marketing", "cost_center": "CC-1100", "active": true}
 ]
 ```