diff --git a/start.command b/start.command
index 33b7443..c34930b 100755
--- a/start.command
+++ b/start.command
@@ -36,8 +36,9 @@ fi
 if [[ ! -d server/.venv ]]; then
   echo "未找到 server/.venv，正在创建并安装依赖…"
   python3 -m venv server/.venv || exit 1
-  server/.venv/bin/pip install -q -r server/requirements.txt || exit 1
 fi
+# 每次启动同步依赖：代码新增依赖（如 Pillow）装上即可用，已满足时秒过
+server/.venv/bin/pip install -q -r server/requirements.txt || exit 1
 
 if [[ ! -f .env ]]; then
   echo "未找到 .env，已从 .env.example 复制，请填入 API Key 后再启动。"