diff --git a/src/index.ts b/src/index.ts
index c9ccae6..9a76b2a 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -7,7 +7,7 @@ type ResponseData = {
   body:        http.IncomingMessage;
   headers:     http.IncomingHttpHeaders;
   text:        () => Promise<string>;
-  json:        () => Promise<any>;
+  json:        () => Promise<JSON>;
   buffer:      () => Promise<Buffer>;
   arrayBuffer: () => Promise<ArrayBuffer>;
 };
@@ -43,7 +43,10 @@ const readData = (
       .on("error", reject);
   });
 
-export default async (urlString: string, options: ExtendedRequestOptions = {}): Promise<ResponseData> => {
+export default async (
+  urlString: string,
+  options: ExtendedRequestOptions = {}
+): Promise<ResponseData> => {
   const { protocol, hostname, pathname, search, port } = new URL(urlString);
 
   const body =