diff --git a/personio-personnel-data-api-oa3.yaml b/personio-personnel-data-api-oa3.yaml
index b0e5205..768d92b 100644
--- a/personio-personnel-data-api-oa3.yaml
+++ b/personio-personnel-data-api-oa3.yaml
@@ -2489,8 +2489,15 @@ components:
               example: Department
             attributes:
               type: object
+              required:
+                - id
+                - name
               properties:
+                id:
+                  type: integer
+                  example: 1
                 name:
+                  type: string
                   example: Marketing
         type:
           $ref: '#/components/schemas/TypeEnum'