diff --git a/runtime/websocket/bin/funasr-wss-server-2pass.cpp b/runtime/websocket/bin/funasr-wss-server-2pass.cpp
index f0a4251d4..89fe16b29 100644
--- a/runtime/websocket/bin/funasr-wss-server-2pass.cpp
+++ b/runtime/websocket/bin/funasr-wss-server-2pass.cpp
@@ -99,11 +99,11 @@ int main(int argc, char* argv[]) {
                                            "0.0.0.0", "string");
     TCLAP::ValueArg<int> port("", "port", "port", false, 10095, "int");
     TCLAP::ValueArg<int> io_thread_num("", "io-thread-num", "io thread num",
-                                       false, 8, "int");
+                                       false, 2, "int");
     TCLAP::ValueArg<int> decoder_thread_num(
         "", "decoder-thread-num", "decoder thread num", false, 8, "int");
     TCLAP::ValueArg<int> model_thread_num("", "model-thread-num",
-                                          "model thread num", false, 4, "int");
+                                          "model thread num", false, 2, "int");
 
     TCLAP::ValueArg<std::string> certfile(
         "", "certfile",
diff --git a/runtime/websocket/bin/funasr-wss-server.cpp b/runtime/websocket/bin/funasr-wss-server.cpp
index 9c3af70e8..83c9a79e7 100644
--- a/runtime/websocket/bin/funasr-wss-server.cpp
+++ b/runtime/websocket/bin/funasr-wss-server.cpp
@@ -91,7 +91,7 @@ int main(int argc, char* argv[]) {
                                            "0.0.0.0", "string");
     TCLAP::ValueArg<int> port("", "port", "port", false, 10095, "int");
     TCLAP::ValueArg<int> io_thread_num("", "io-thread-num", "io thread num",
-                                       false, 8, "int");
+                                       false, 2, "int");
     TCLAP::ValueArg<int> decoder_thread_num(
         "", "decoder-thread-num", "decoder thread num", false, 8, "int");
     TCLAP::ValueArg<int> model_thread_num("", "model-thread-num",