diff --git a/models.proto b/models.proto
index 1cd43de..7d96c8b 100644
--- a/models.proto
+++ b/models.proto
@@ -41,10 +41,8 @@ message Equipment {
 message Team {
   string id = 1; // @inject_tag: index:"unique" pri:"1"
   string role_id = 2;
-  string hero_id1 = 3;
-  string hero_id2 = 4;
-  string hero_id3 = 5;
-  map<string,string> child_ids = 6;
+  map<int32,string> hero_ids = 3;
+  map<int32,string> child_ids = 4;
 }
 
 message Email {
--
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