diff --git a/src/c2se/backend/identity.rs b/src/c2se/backend/identity.rs
index 270b4f3..dc8b3e7 100644
--- a/src/c2se/backend/identity.rs
+++ b/src/c2se/backend/identity.rs
@@ -18,7 +18,7 @@ pub const SUBJECT_SIGNIN: &str = const_format::concatcp!(SUBJECT, ".Signin");
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct SigninRequest {
   #[prost(string, tag = "1")]
-  pub token: ::prost::alloc::string::String,
+  pub security_code_hash: ::prost::alloc::string::String,
   #[prost(string, tag = "2")]
   pub security_code: ::prost::alloc::string::String,
   #[prost(string, tag = "3")]
diff --git a/src/c2se/frontend/identity.rs b/src/c2se/frontend/identity.rs
index 1698f4e..3c266dd 100644
--- a/src/c2se/frontend/identity.rs
+++ b/src/c2se/frontend/identity.rs
@@ -18,7 +18,7 @@ pub const SUBJECT_SIGNIN: &str = const_format::concatcp!(SUBJECT, ".Signin");
 #[derive(Clone, PartialEq, ::prost::Message)]
 pub struct SigninRequest {
   #[prost(string, tag = "1")]
-  pub token: ::prost::alloc::string::String,
+  pub security_code_hash: ::prost::alloc::string::String,
   #[prost(string, tag = "2")]
   pub security_code: ::prost::alloc::string::String,
   #[prost(string, tag = "3")]
diff --git a/src/ss/member/identity.rs b/src/ss/member/identity.rs
index af80c35..5943b10 100644
--- a/src/ss/member/identity.rs
+++ b/src/ss/member/identity.rs
@@ -72,7 +72,7 @@ pub mod captcha_response {
   #[derive(Clone, PartialEq, ::prost::Message)]
   pub struct Result {
     #[prost(string, tag = "1")]
-    pub token: ::prost::alloc::string::String,
+    pub security_code_hash: ::prost::alloc::string::String,
     #[prost(string, tag = "2")]
     pub image: ::prost::alloc::string::String,
   }
@@ -84,7 +84,7 @@ pub struct SigninRequest {
   #[prost(message, optional, tag = "1")]
   pub client: ::core::option::Option<core::network::Client>,
   #[prost(string, tag = "2")]
-  pub token: ::prost::alloc::string::String,
+  pub security_code_hash: ::prost::alloc::string::String,
   #[prost(string, tag = "3")]
   pub security_code: ::prost::alloc::string::String,
   #[prost(string, tag = "4")]