diff --git a/proto/models/bank.proto b/proto/models/bank.proto
index 45d5fbb..a165a7a 100644
--- a/proto/models/bank.proto
+++ b/proto/models/bank.proto
@@ -5,7 +5,7 @@ package bet.beteran.bank;
 message Bank {
   string id = 1;
   string name = 2;
-  bool sort_order = 3;
+  uint32 sort_order = 3;
   bool show = 4;
   bool can_use = 5;
   optional string memo = 6;