diff --git a/common/util/constant.go b/common/util/constant.go
index 5be321f..be580bf 100644
--- a/common/util/constant.go
+++ b/common/util/constant.go
@@ -123,7 +123,7 @@ const (
 )
 
 const (
-	EMAIL_REGEX = `^[a-zA-Z]+\.[a-zA-Z]+@navi\.com$`
+	EMAIL_REGEX = `^[a-zA-Z0-9._+-]+@navi\.com$`
 )
 
 const (