diff --git a/package.json b/package.json
index 994263c84..6c8cfc5f8 100644
--- a/package.json
+++ b/package.json
@@ -25,16 +25,16 @@
         "@typescript-eslint/eslint-plugin": "^3.9.1",
         "@typescript-eslint/parser": "^3.9.1",
         "cross-spawn": "^7.0.3",
-        "eslint": "^7.9.0",
+        "eslint": "^7.10.0",
         "eslint-config-airbnb-base": "^14.2.0",
         "eslint-import-resolver-typescript": "^2.3.0",
-        "eslint-plugin-import": "^2.22.0",
+        "eslint-plugin-import": "^2.22.1",
         "globby": "^11.0.1",
         "jest": "^26.4.2",
         "latest-version": "^5.1.0",
         "ora": "^5.1.0",
         "semver": "^7.3.2",
-        "ts-jest": "^26.4.0",
+        "ts-jest": "^26.4.1",
         "typescript": "^4.0.3"
     },
     "dependencies": {
diff --git a/packages/geoip/package.json b/packages/geoip/package.json
index 971da46ca..bba4af184 100644
--- a/packages/geoip/package.json
+++ b/packages/geoip/package.json
@@ -6,7 +6,7 @@
     "author": "undefined <masnn0@outlook.com>",
     "license": "MIT",
     "dependencies": {
-        "maxmind": "^4.1.3"
+        "maxmind": "^4.2.0"
     },
     "scripts": {
         "prepublish": "./prepublish.sh"
diff --git a/packages/hydrojudge/package.json b/packages/hydrojudge/package.json
index cb7d201ad..640c8cc2e 100644
--- a/packages/hydrojudge/package.json
+++ b/packages/hydrojudge/package.json
@@ -14,7 +14,7 @@
         "lodash": "^4.17.20",
         "p-queue": "^6.6.1",
         "shell-quote": "^1.7.2",
-        "systeminformation": "^4.27.5"
+        "systeminformation": "^4.27.6"
     },
     "peerDependencies": {
         "hydrooj": "^2.13.3"
diff --git a/packages/hydrooj/package.json b/packages/hydrooj/package.json
index 869bdcd35..55f4695a6 100644
--- a/packages/hydrooj/package.json
+++ b/packages/hydrooj/package.json
@@ -1,6 +1,6 @@
 {
     "name": "hydrooj",
-    "version": "2.13.22",
+    "version": "2.13.23",
     "bin": "bin/hydrooj.js",
     "main": "dist/loader.js",
     "typings": "dist/loader.d.ts",
@@ -25,13 +25,13 @@
         "lru-cache": "^6.0.0",
         "moment-timezone": "^0.5.31",
         "mongodb": "^3.6.2",
-        "nodemailer": "^6.4.10",
+        "nodemailer": "^6.4.13",
         "ps-list": "^7.2.0",
         "serialize-javascript": "^5.0.1",
         "sockjs": "^0.3.20",
         "superagent": "^6.1.0",
         "supports-color": "^7.2.0",
-        "systeminformation": "^4.27.5",
+        "systeminformation": "^4.27.6",
         "yargs": "^16.0.3"
     },
     "devDependencies": {
diff --git a/packages/hydrooj/src/interface.ts b/packages/hydrooj/src/interface.ts
index fdcd54bbe..a2f0cf319 100644
--- a/packages/hydrooj/src/interface.ts
+++ b/packages/hydrooj/src/interface.ts
@@ -1,6 +1,6 @@
 // eslint-disable-next-line @typescript-eslint/no-unused-vars
 import { Readable, Writable } from 'stream';
-import { ObjectID, GridFSBucket } from 'mongodb';
+import { ObjectID } from 'mongodb';
 import fs from 'fs';
 import { Dictionary, NumericDictionary } from 'lodash';
 
@@ -532,9 +532,11 @@ export interface UI {
     nodes: {
         nav: any[],
         problem_add: any[],
+        user_dropdown: any[],
     },
     Nav: typeof import('./lib/ui').Nav,
     ProblemAdd: typeof import('./lib/ui').ProblemAdd,
+    UserDropdown: typeof import('./lib/ui').UserDropdown,
 }
 
 declare global {
diff --git a/packages/hydrooj/src/lib/ui.ts b/packages/hydrooj/src/lib/ui.ts
index ac5b4d29e..1bbe8c11a 100644
--- a/packages/hydrooj/src/lib/ui.ts
+++ b/packages/hydrooj/src/lib/ui.ts
@@ -56,6 +56,14 @@ export const ProblemAdd = (
     });
 };
 
+export const UserDropdown = (
+    name: string, args: Dictionary<any> = {}, ...permPrivChecker: Array<number | bigint | Function>
+) => {
+    global.Hydro.ui.nodes.user_dropdown.push({
+        name, args: args || {}, checker: buildChecker(...permPrivChecker),
+    });
+};
+
 Nav('homepage', {}, 'homepage');
 Nav('problem_main', {}, 'problem', PERM.PERM_VIEW_PROBLEM);
 Nav('training_main', {}, 'training', PERM.PERM_VIEW_TRAINING);
@@ -71,3 +79,4 @@ ProblemAdd('problem_import_syzoj', {}, 'copy', 'Import From SYZOJ');
 
 global.Hydro.ui.Nav = Nav;
 global.Hydro.ui.ProblemAdd = ProblemAdd;
+global.Hydro.ui.UserDropdown = UserDropdown;
diff --git a/packages/hydrooj/src/loader.ts b/packages/hydrooj/src/loader.ts
index 69d06da30..3d5286dea 100644
--- a/packages/hydrooj/src/loader.ts
+++ b/packages/hydrooj/src/loader.ts
@@ -30,6 +30,7 @@ if (!global.Hydro) {
             nodes: {
                 nav: [],
                 problem_add: [],
+                user_dropdown: [],
             },
             template: {},
         },
diff --git a/packages/hydrooj/test/lib.crypto.spec.ts b/packages/hydrooj/test/lib.crypto.spec.ts
index cec6a2cef..1db0ae1fa 100644
--- a/packages/hydrooj/test/lib.crypto.spec.ts
+++ b/packages/hydrooj/test/lib.crypto.spec.ts
@@ -1,7 +1,6 @@
 import 'hydrooj';
 import 'hydrooj/src/utils';
-import md5 from 'hydrooj/src/lib/md5';
-import sha1 from 'hydrooj/src/lib/sha1';
+import { md5, sha1 } from 'hydrooj/src/lib/crypto';
 import pwhash from 'hydrooj/src/lib/hash.hydro';
 
 describe('crypto', () => {
diff --git a/packages/login-with-qq/package.json b/packages/login-with-qq/package.json
index 027046646..d82d3281e 100644
--- a/packages/login-with-qq/package.json
+++ b/packages/login-with-qq/package.json
@@ -16,6 +16,6 @@
         "ws": "^7.3.1"
     },
     "devDependencies": {
-        "@types/ws": "^7.2.6"
+        "@types/ws": "^7.2.7"
     }
 }
\ No newline at end of file