diff --git a/core/src/main/java/com/databasir/core/domain/system/data/SystemEmailUpdateRequest.java b/core/src/main/java/com/databasir/core/domain/system/data/SystemEmailUpdateRequest.java
index ad9f83e..a47fa1f 100644
--- a/core/src/main/java/com/databasir/core/domain/system/data/SystemEmailUpdateRequest.java
+++ b/core/src/main/java/com/databasir/core/domain/system/data/SystemEmailUpdateRequest.java
@@ -8,11 +8,11 @@ import javax.validation.constraints.*;
 public class SystemEmailUpdateRequest {
 
     @NotBlank
-    @Email
     private String username;
 
     private String password;
 
+    @Email
     private String mailFrom;
 
     @NotBlank