diff --git a/src/types.ts b/src/types.ts
index 7771570..437f2a3 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -1,10 +1,10 @@
 namespace Carpool {
-	export interface Group extends Document {
+	export interface Group {
 		id: string;
 		member_ids: string[];
 	}
 
-	export interface User extends Document {
+	export interface User {
 		id: string;
 		email: string;
 		username: string;
@@ -12,15 +12,15 @@ namespace Carpool {
 		last_name: string;
 	}
 
-	export interface Comment extends Document {
+	export interface Comment {
 		id: string;
-		text: string;
+		body: string;
 		author_id: string;
 	}
 
 	export type Status = 'pending' | 'cancelled' | 'completed' | 'interrupted';
 
-	export interface Pool extends Document {
+	export interface Pool {
 		id: string;
 		title: string;
 		description: string;