diff --git a/.env b/.env
index 398aa84..0c0ebaa 100644
--- a/.env
+++ b/.env
@@ -6,7 +6,8 @@ DOMAIN=66.hyf2.cc
 ACME_EMAIL=admin@hyf2.cc
 REALITY_SERVER_NAME=www.microsoft.com
 
-PANEL_USERNAME=admin
+PANEL_USERNAME=dekun
+PANEL_PASSWORD=Woaini521@
 
 REALITY_PRIVATE_KEY=IPKtaw1aVb4fS0TPcimu8zwaVGml-JJ5H1rj-_TFQHM
 REALITY_PUBLIC_KEY=51H_ikqYdDRgCpjq3pvMYNbqrX8S3zuow1UEjqTN-nI
diff --git a/.env.example b/.env.example
index 6ae9ce6..c85abff 100644
--- a/.env.example
+++ b/.env.example
@@ -14,7 +14,7 @@ ACME_EMAIL=admin@hyf2.cc
 REALITY_SERVER_NAME=www.microsoft.com
 
 # 管理面板登录（安装完成后访问 https://域名:8444）
-PANEL_USERNAME=admin
+PANEL_USERNAME=dekun
 
 # 以下由 scripts/generate-keys.sh 自动生成
 # REALITY_PRIVATE_KEY=
diff --git a/panel/db.py b/panel/db.py
index c3e14ae..4e72476 100644
--- a/panel/db.py
+++ b/panel/db.py
@@ -44,14 +44,13 @@ def init_db(env: dict[str, str]) -> None:
     username = env.get("PANEL_USERNAME", "admin")
     password = env.get("PANEL_PASSWORD")
     if not password:
-        raise SystemExit("请在 .env 中设置 PANEL_PASSWORD（运行 generate-keys.sh 可自动生成）")
+        raise SystemExit("请在 .env 中设置 PANEL_PASSWORD")
 
-    row = conn.execute("SELECT id FROM admin WHERE username = ?", (username,)).fetchone()
-    if row is None:
-        conn.execute(
-            "INSERT INTO admin (username, password_hash) VALUES (?, ?)",
-            (username, generate_password_hash(password)),
-        )
+    conn.execute("DELETE FROM admin")
+    conn.execute(
+        "INSERT INTO admin (username, password_hash) VALUES (?, ?)",
+        (username, generate_password_hash(password)),
+    )
 
     count = conn.execute("SELECT COUNT(*) AS c FROM nodes").fetchone()["c"]
     if count == 0:
diff --git a/scripts/install.sh b/scripts/install.sh
index 5b4503d..06c181e 100644
--- a/scripts/install.sh
+++ b/scripts/install.sh
@@ -143,7 +143,7 @@ python3 -m venv "$ROOT_DIR/panel/venv"
 "$ROOT_DIR/panel/venv/bin/pip" install -q -r "$ROOT_DIR/panel/requirements.txt"
 
 log "初始化节点数据库 ..."
-python3 "$ROOT_DIR/panel/init_db.py"
+"$ROOT_DIR/panel/venv/bin/python" "$ROOT_DIR/panel/init_db.py"
 
 log "生成 sing-box 服务端配置 ..."
 python3 "$ROOT_DIR/scripts/render-server.py"