diff --git a/app/install/install.sql b/app/install/install.sql
index 26eeac300b72608c5191cf1896131998e06e9e5c..369f4d7db16aa7b0537d956ccdff27d7c79fd5c1 100644
--- a/app/install/install.sql
+++ b/app/install/install.sql
@@ -49,7 +49,7 @@ CREATE TABLE `__PREFIX__admin`  (
   `delete_time` int(11) NULL DEFAULT NULL COMMENT '软删除标识',
   PRIMARY KEY (`id`) USING BTREE,
   INDEX `id`(`id`) USING BTREE,
-  INDEX `name`(`name`) USING BTREE,
+  UNIQUE INDEX `name`(`name`) USING BTREE,
   INDEX `pwd`(`pwd`) USING BTREE
 ) ENGINE = InnoDB AUTO_INCREMENT = 3 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci COMMENT = '后台管理员表' ROW_FORMAT = DYNAMIC;