diff --git a/src/http.ts b/src/http.ts
index bdec8ec..7f46f70 100644
--- a/src/http.ts
+++ b/src/http.ts
@@ -130,6 +130,11 @@ import { VerifyEmail } from "./types/VerifyEmail";
 import { VerifyEmailResponse } from "./types/VerifyEmailResponse";
 import { UploadImage, UploadImageResponse, VERSION } from "./types/others";
 
+// @ts-ignore
+BigInt.prototype["toJSON"] = function () {
+  return this.toString();
+};
+
 enum HttpType {
   Get = "GET",
   Post = "POST",
diff --git a/src/websocket.ts b/src/websocket.ts
index a33add4..d661776 100644
--- a/src/websocket.ts
+++ b/src/websocket.ts
@@ -87,6 +87,11 @@ import { TransferCommunity } from "./types/TransferCommunity";
 import { UserJoin } from "./types/UserJoin";
 import { VerifyEmail } from "./types/VerifyEmail";
 
+// @ts-ignore
+BigInt.prototype["toJSON"] = function () {
+  return this.toString();
+};
+
 /**
  * Helps build lemmy websocket message requests, that you can use in your Websocket sends.
  *