diff --git a/docs/openapi/openapi.yaml b/docs/openapi/openapi.yaml
index 89f97ddc..1a18feff 100644
--- a/docs/openapi/openapi.yaml
+++ b/docs/openapi/openapi.yaml
@@ -289,6 +289,7 @@ components:
           x-faker: internet.email
         address:
           $ref: "#/components/schemas/Address"
+      additionalProperties: false
     Donor:
       allOf:
         - $ref: "#/components/schemas/Person"
@@ -298,6 +299,7 @@ components:
           type: string
           nullable: true
           x-faker: name.findName
+      additionalProperties: false
     Attorney:
       allOf:
         - $ref: "#/components/schemas/Person"
@@ -309,6 +311,7 @@ components:
             - active
             - replacement
             - removed
+      additionalProperties: false
     Update:
       type: object
       required: