diff --git a/website/docs/install/manual.md b/website/docs/install/manual.md
index d9f361e..8b010a6 100644
--- a/website/docs/install/manual.md
+++ b/website/docs/install/manual.md
@@ -12,7 +12,7 @@ But if your server not support dockerize, you can try to install by manual.
 
 You need:
 
-- [Node.js](https://nodejs.org/en/download/) 18 / 20.4
+- [Node.js](https://nodejs.org/en/download/) 18.12+ / 20.4+
 - [pnpm](https://pnpm.io/) 8.15.3+
 - [Git](https://git-scm.com/downloads)
 - [postgresql](https://www.postgresql.org/)
@@ -34,7 +34,7 @@ pnpm build
 Create a `.env` file in `src/server`
 
 ```ini
-DATABASE_URL="postgresql://user:pass@127.0.0.1:5432/tianji?schema=public&connection_limit=10"
+DATABASE_URL="postgresql://user:pass@127.0.0.1:5432/tianji?schema=public"
 JWT_SECRET="replace-me-with-a-random-string"
 ```
 
@@ -42,6 +42,8 @@ Make sure your database url is correct. and dont remember create database before
 
 For more environment can check this document [environment](../environment.md)
 
+> if you can, better to make sure your encoding is en_US.utf8, for example: `createdb -E UTF8 -l en_US.utf8 tianji`
+
 ## Run server
 
 ```bash