diff --git a/lib/grpc/grpc_req.dart b/lib/grpc/grpc_req.dart
index c4a56b7d4..3600939f1 100644
--- a/lib/grpc/grpc_req.dart
+++ b/lib/grpc/grpc_req.dart
@@ -13,7 +13,10 @@ import 'package:protobuf/protobuf.dart' show GeneratedMessage;
 abstract final class GrpcReq {
   static const _isolateSize = 256 * 1024;
 
-  static final options = Options(responseType: ResponseType.bytes);
+  static final options = Options(
+    contentType: 'application/grpc',
+    responseType: ResponseType.bytes,
+  );
 
   static Uint8List compressProtobuf(Uint8List proto) {
     proto = const GZipEncoder().encodeBytes(proto);
diff --git a/lib/utils/accounts/grpc_headers.dart b/lib/utils/accounts/grpc_headers.dart
index 41cd30691..ee83b3b9f 100644
--- a/lib/utils/accounts/grpc_headers.dart
+++ b/lib/utils/accounts/grpc_headers.dart
@@ -8,7 +8,6 @@ import 'package:PiliPlus/grpc/bilibili/metadata/locale.pb.dart';
 import 'package:PiliPlus/grpc/bilibili/metadata/network.pb.dart' as network;
 import 'package:PiliPlus/utils/login_utils.dart';
 import 'package:PiliPlus/utils/utils.dart';
-import 'package:dio/dio.dart';
 
 abstract final class GrpcHeaders {
   static const _build = 2001100;
@@ -22,7 +21,6 @@ abstract final class GrpcHeaders {
   static String get _sessionId => Utils.generateRandomString(8);
 
   static final Map<String, String> _base = {
-    Headers.contentTypeHeader: 'application/grpc',
     'grpc-encoding': 'gzip',
     'gzip-accept-encoding': 'gzip,identity',
     'user-agent': Constants.userAgent,