diff --git a/mishards/.env.example b/mishards/.env.example
index 76b1810759..47a4549f04 100644
--- a/mishards/.env.example
+++ b/mishards/.env.example
@@ -14,8 +14,8 @@ SD_LABEL_SELECTOR=tier=ro-servers
 
 SD_STATIC_HOSTS=127.0.0.1
 
-SQLALCHEMY_DATABASE_URI=mysql+pymysql://root:root@127.0.0.1:3306/milvus?charset=utf8mb4
-#SQLALCHEMY_DATABASE_URI=sqlite:////tmp/milvus/db/meta.sqlite?check_same_thread=False
+#SQLALCHEMY_DATABASE_URI=mysql+pymysql://root:root@127.0.0.1:3306/milvus?charset=utf8mb4
+SQLALCHEMY_DATABASE_URI=sqlite:////tmp/milvus/db/meta.sqlite?check_same_thread=False
 SQL_ECHO=True
 
 TESTING=True