diff --git a/package.json b/package.json
index ec95490d..340a77af 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@mixin.dev/mixin-node-sdk",
-  "version": "7.5.2",
+  "version": "7.5.3",
   "license": "MIT",
   "description": "Mixin SDK for Node.js and Javascript",
   "main": "dist/index.js",
diff --git a/src/client/types/oauth.ts b/src/client/types/oauth.ts
index 4f9d8712..37030ad2 100644
--- a/src/client/types/oauth.ts
+++ b/src/client/types/oauth.ts
@@ -6,12 +6,14 @@ export interface AccessTokenResponse {
   scope: string;
   authorization_id: string;
   /** public key from server */
-  ed25519: string;
+  ed25519?: string;
+  access_token?: string;
 }
+
 export interface AccessTokenRequest {
   client_id: string;
   code: string;
-  ed25519: string;
+  ed25519?: string;
   client_secret?: string;
   code_verifier?: string;
 }