diff --git a/src/interfaces/EnvelopedResponse.ts b/src/interfaces/EnvelopedResponse.ts
index edbd8a0..b10cda5 100644
--- a/src/interfaces/EnvelopedResponse.ts
+++ b/src/interfaces/EnvelopedResponse.ts
@@ -1,7 +1,9 @@
-import { OutgoingHttpHeaders } from "http";
+export interface OutgoingHttpHeaders {
+  [header: string]: number | string | string[] | undefined;
+}
 
-export interface EnvelopedResponse<T> {
+export default interface EnvelopedResponse<T> {
   readonly status: number;
   readonly body: T;
   readonly headers: OutgoingHttpHeaders;
-}
\ No newline at end of file
+}
diff --git a/src/interfaces/PaginatedResults.ts b/src/interfaces/PaginatedResponse.ts
similarity index 82%
rename from src/interfaces/PaginatedResults.ts
rename to src/interfaces/PaginatedResponse.ts
index b000c86..9c7946c 100644
--- a/src/interfaces/PaginatedResults.ts
+++ b/src/interfaces/PaginatedResponse.ts
@@ -7,7 +7,7 @@ export interface PaginationMetadata {
   readonly before: string | null;
   readonly totalCount: number;
 }
-export interface PaginatedResponse<I extends Item> {
+export default interface PaginatedResponse<I extends Item> {
   readonly data: I[];
   readonly pagination: PaginationMetadata;
 }
diff --git a/src/interfaces/index.ts b/src/interfaces/index.ts
index d9a03f1..cf304b8 100644
--- a/src/interfaces/index.ts
+++ b/src/interfaces/index.ts
@@ -1,19 +1,32 @@
-import Cursor from "./Cursor";
-import CursorResult from "./CursorResult";
-import Filter from "./Filter";
-import Item from "./Item";
-import Options from "./Options";
-import Pagination from "./Pagination";
-import Sort from "./Sort";
-import SortOrder from "./SortOrder";
+import Cursor from './Cursor';
+import CursorResult from './CursorResult';
+import {
+  default as EnvelopedResponse,
+  OutgoingHttpHeaders,
+} from './EnvelopedResponse';
+
+import Filter from './Filter';
+import Item from './Item';
+import Options from './Options';
+import {
+  default as PaginatedResponse,
+  PaginationMetadata,
+} from './PaginatedResponse';
+import Pagination from './Pagination';
+import Sort from './Sort';
+import SortOrder from './SortOrder';
 
 export {
   Cursor,
   CursorResult,
+  EnvelopedResponse,
   Filter,
   Item,
   Options,
+  OutgoingHttpHeaders,
   Pagination,
+  PaginationMetadata,
+  PaginatedResponse,
   Sort,
-  SortOrder
+  SortOrder,
 };