diff --git a/packages/hydrooj/package.json b/packages/hydrooj/package.json
index c545eeceb..577e08df5 100644
--- a/packages/hydrooj/package.json
+++ b/packages/hydrooj/package.json
@@ -1,6 +1,6 @@
 {
     "name": "hydrooj",
-    "version": "2.21.11",
+    "version": "2.21.12",
     "bin": "bin/hydrooj.js",
     "main": "dist/loader.js",
     "typings": "dist/loader.d.ts",
diff --git a/packages/hydrooj/src/entry/common.ts b/packages/hydrooj/src/entry/common.ts
index 250897b37..9d2c3a56d 100644
--- a/packages/hydrooj/src/entry/common.ts
+++ b/packages/hydrooj/src/entry/common.ts
@@ -12,8 +12,8 @@ const logger = new Logger('common', true);
 export const builtinLib = [
     'jwt', 'download', 'i18n', 'mail', 'useragent',
     'crypto', 'misc', 'paginate', 'hash.hydro', 'rank',
-    'validator', 'ui', 'sysinfo', 'testdata.convert.ini', 'testdataConfig',
-    'content', 'difficulty',
+    'validator', 'ui', 'testdata.convert.ini', 'testdataConfig', 'difficulty',
+    'content',
 ];
 
 export const builtinModel = [