diff --git a/config/go-fly.sql b/config/go-fly.sql
index 306234e..9a9a082 100644
--- a/config/go-fly.sql
+++ b/config/go-fly.sql
@@ -50,7 +50,7 @@ CREATE TABLE `message` (
  PRIMARY KEY (`id`),
  KEY `kefu_id` (`kefu_id`),
  KEY `visitor_id` (`visitor_id`)
-) ENGINE=InnoDB DEFAULT CHARSET=utf8|
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4|
 
 DROP TABLE IF EXISTS `user_role`|
 CREATE TABLE `user_role` (
diff --git a/models/models.go b/models/models.go
index 4c9972e..eb92f23 100644
--- a/models/models.go
+++ b/models/models.go
@@ -19,7 +19,7 @@ type Model struct {
 
 func init() {
 	mysql := config.CreateMysql()
-	dsn := fmt.Sprintf("%s:%s@tcp(%s:%s)/%s?charset=utf8&parseTime=True&loc=Local", mysql.Username, mysql.Password, mysql.Server, mysql.Port, mysql.Database)
+	dsn := fmt.Sprintf("%s:%s@tcp(%s:%s)/%s?charset=utf8mb4&parseTime=True&loc=Local", mysql.Username, mysql.Password, mysql.Server, mysql.Port, mysql.Database)
 	var err error
 	DB, err = gorm.Open("mysql", dsn)
 	if err != nil {