diff --git a/proto/c2se/backend/identity.proto b/proto/c2se/backend/identity.proto
index 53a9cbe..7d72f8c 100644
--- a/proto/c2se/backend/identity.proto
+++ b/proto/c2se/backend/identity.proto
@@ -14,6 +14,6 @@ message SigninRequest {
 
 message SigninResponse {
   optional bet.protobuf.rpc.Error error = 1;
-  optional string token = 2;
+  optional string session_id = 2;
 }
 
diff --git a/proto/c2se/frontend/identity.proto b/proto/c2se/frontend/identity.proto
index 74ae9ae..46697d9 100644
--- a/proto/c2se/frontend/identity.proto
+++ b/proto/c2se/frontend/identity.proto
@@ -14,5 +14,5 @@ message SigninRequest {
 
 message SigninResponse {
   optional bet.protobuf.rpc.Error error = 1;
-  optional string token = 2;
+  optional string session_id = 2;
 }
diff --git a/proto/models/core/network.proto b/proto/models/core/network.proto
index 46ef7cb..178e05c 100644
--- a/proto/models/core/network.proto
+++ b/proto/models/core/network.proto
@@ -5,5 +5,5 @@ package bet.beteran.core.network;
 message Client {
   string client_ip = 1;
   optional string site_url = 2;
-  optional string access_token = 3;
+  optional string session_id = 3;
 }