diff --git a/src/modules/authentication/interface/grpc-controllers/authentication.proto b/src/modules/authentication/interface/grpc-controllers/authentication.proto
index 604b09c..519eb56 100644
--- a/src/modules/authentication/interface/grpc-controllers/authentication.proto
+++ b/src/modules/authentication/interface/grpc-controllers/authentication.proto
@@ -5,10 +5,10 @@ package authentication;
 service AuthenticationService {
   rpc Validate(AuthenticationByNamePassword) returns (Id);
   rpc Create(Authentication) returns (Id);
-  rpc AddUsername(Username) returns (Id);
+  rpc AddUsername(UsernameWithId) returns (Id);
   rpc UpdatePassword(Password) returns (Id);
-  rpc UpdateUsername(Username) returns (Id);
-  rpc DeleteUsername(Username) returns (Id);
+  rpc UpdateUsername(UsernameWithId) returns (Id);
+  rpc DeleteUsername(Name) returns (Id);
   rpc Delete(UserId) returns (Empty);
 }
 
@@ -29,11 +29,20 @@ message Password {
 }
 
 message Username {
+  string name = 1;
+  string type = 2;
+}
+
+message UsernameWithId {
   string userId = 1;
   string name = 2;
   string type = 3;
 }
 
+message Name {
+  string name = 1;
+}
+
 message Id {
   string id = 1;
 }