diff --git a/src/server/db/index.ts b/src/server/db/index.ts
index 1b526ee..a0399f8 100644
--- a/src/server/db/index.ts
+++ b/src/server/db/index.ts
@@ -8,8 +8,12 @@ const createDb = () => {
   const file = getDbFileName();
   mkdirSync(dirname(file), { recursive: true });
   const db = drizzle({ connection: { path: file } });
-  // node:sqlite 是同步驱动，写入会阻塞事件循环；WAL + NORMAL 下提交不再逐次刷盘
-  db.$client.exec("PRAGMA journal_mode = WAL; PRAGMA synchronous = NORMAL;");
+  // node:sqlite 是同步驱动，写入会阻塞事件循环；WAL + NORMAL 下提交不再逐次刷盘。
+  // busy_timeout 必须排在最前：默认遇到锁立刻报 database is locked，而 next build 的多个
+  // worker 会同时导入本模块、同时切换新库文件的 WAL 模式，后到的要等前一个切完
+  db.$client.exec(
+    "PRAGMA busy_timeout = 5000; PRAGMA journal_mode = WAL; PRAGMA synchronous = NORMAL;"
+  );
   return db;
 };