diff --git a/package.json b/package.json
index b7ab8fbc7..7fb0648e4 100644
--- a/package.json
+++ b/package.json
@@ -31,27 +31,27 @@
         "@shelf/jest-mongodb": "^1.2.5",
         "@types/cross-spawn": "^6.0.2",
         "@types/jest": "^26.0.23",
-        "@types/node": "^15.12.4",
+        "@types/node": "^15.12.5",
         "@types/semver": "^7.3.6",
-        "@typescript-eslint/eslint-plugin": "^4.26.1",
-        "@typescript-eslint/parser": "^4.26.1",
+        "@typescript-eslint/eslint-plugin": "^4.28.0",
+        "@typescript-eslint/parser": "^4.28.0",
         "cac": "^6.7.3",
         "cross-env": "^7.0.3",
         "cross-spawn": "^7.0.3",
-        "eslint": "^7.28.0",
+        "eslint": "^7.29.0",
         "eslint-config-airbnb-typescript": "^12.3.1",
         "eslint-import-resolver-typescript": "^2.4.0",
         "eslint-plugin-import": "^2.23.4",
         "fs-extra": "^10.0.0",
         "globby": "^11.0.4",
-        "jest": "^27.0.4",
+        "jest": "^27.0.5",
         "latest-version": "^5.1.0",
         "mongodb": "^3.6.9",
         "nmls": "^3.0.1",
         "ora": "^5.4.1",
         "semver": "^7.3.5",
         "ts-jest": "^27.0.3",
-        "typedoc": "^0.20.37",
+        "typedoc": "^0.21.2",
         "typescript": "4.2.4"
     }
 }
diff --git a/packages/center/package.json b/packages/center/package.json
index d6f0c43f0..6477303af 100644
--- a/packages/center/package.json
+++ b/packages/center/package.json
@@ -12,7 +12,7 @@
     },
     "devDependencies": {
         "@types/js-yaml": "^4.0.1",
-        "@types/node": "^15.12.4"
+        "@types/node": "^15.12.5"
     },
     "peerDependencies": {
         "hydrooj": "*"
diff --git a/packages/hydrojudge/package.json b/packages/hydrojudge/package.json
index 6667e5bfb..e0026c88f 100644
--- a/packages/hydrojudge/package.json
+++ b/packages/hydrojudge/package.json
@@ -15,7 +15,7 @@
         "mongodb": "^3.6.9",
         "p-queue": "^6.6.2",
         "shell-quote": "^1.7.2",
-        "ws": "^7.4.6"
+        "ws": "^7.5.0"
     },
     "preferUnplugged": true,
     "license": "AGPL-3.0-or-later",
diff --git a/packages/hydrooj/package.json b/packages/hydrooj/package.json
index cba5b7324..1c11e2aa5 100644
--- a/packages/hydrooj/package.json
+++ b/packages/hydrooj/package.json
@@ -1,6 +1,6 @@
 {
     "name": "hydrooj",
-    "version": "2.28.57",
+    "version": "2.28.58",
     "bin": "bin/hydrooj.js",
     "main": "dist/loader.js",
     "typings": "dist/loader.d.ts",
diff --git a/packages/hydrooj/src/handler/problem.ts b/packages/hydrooj/src/handler/problem.ts
index 1054f72d0..adf5658c1 100644
--- a/packages/hydrooj/src/handler/problem.ts
+++ b/packages/hydrooj/src/handler/problem.ts
@@ -28,7 +28,7 @@ import {
     Route, Handler, Types, param, post, route, query,
 } from '../service/server';
 
-export const parseCategory = (value: string) => flatten(value.replace(/，/g, ',').split('+').map((e) => e.split(','))).map((e) => e.trim());
+export const parseCategory = (value: string) => flatten(value.replace(/，/g, ',').split(',')).map((e) => e.trim());
 export const parsePid = (value: string) => (isSafeInteger(value) ? +value : value);
 
 export class ProblemHandler extends Handler {
@@ -70,7 +70,7 @@ export class ProblemMainHandler extends ProblemHandler {
             for (const tag of category) query.$and.push({ tag });
         }
         if (q) category.push(q);
-        if (category.length) this.extraTitleContent = category.join('+');
+        if (category.length) this.extraTitleContent = category.join(',');
         if (q) {
             if (search) {
                 const result = await search(domainId, q);
@@ -99,7 +99,7 @@ export class ProblemMainHandler extends ProblemHandler {
             );
         }
         this.response.body = {
-            page, pcount, ppcount, pdocs, psdict, category: category.join('+'),
+            page, pcount, ppcount, pdocs, psdict, category: category.join(','),
         };
     }
 
diff --git a/packages/login-with-qq/package.json b/packages/login-with-qq/package.json
index 812af5fa3..77d20b817 100644
--- a/packages/login-with-qq/package.json
+++ b/packages/login-with-qq/package.json
@@ -7,7 +7,7 @@
     "license": "AGPL-3.0-or-later",
     "preferUnplugged": true,
     "dependencies": {
-        "ws": "^7.4.6"
+        "ws": "^7.5.0"
     },
     "devDependencies": {
         "@types/ws": "^7.4.5"
diff --git a/packages/ui-default/package.json b/packages/ui-default/package.json
index 192fe0d2f..0e26056fb 100644
--- a/packages/ui-default/package.json
+++ b/packages/ui-default/package.json
@@ -9,7 +9,7 @@
   "devDependencies": {
     "@babel/cli": "^7.14.5",
     "@babel/core": "^7.14.6",
-    "@babel/eslint-parser": "7.14.5",
+    "@babel/eslint-parser": "7.14.7",
     "@babel/plugin-proposal-class-properties": "^7.14.5",
     "@babel/plugin-proposal-export-namespace-from": "^7.14.5",
     "@babel/plugin-proposal-function-sent": "^7.14.5",
@@ -19,13 +19,13 @@
     "@babel/plugin-syntax-dynamic-import": "^7.8.3",
     "@babel/plugin-syntax-import-meta": "^7.10.4",
     "@babel/plugin-transform-runtime": "^7.14.5",
-    "@babel/preset-env": "^7.14.5",
+    "@babel/preset-env": "^7.14.7",
     "@babel/preset-react": "^7.14.5",
     "@babel/register": "^7.14.5",
-    "@babel/runtime-corejs3": "^7.14.6",
-    "@blueprintjs/core": "^3.45.0",
-    "@blueprintjs/icons": "^3.26.1",
-    "@blueprintjs/select": "^3.16.4",
+    "@babel/runtime-corejs3": "^7.14.7",
+    "@blueprintjs/core": "^3.46.0",
+    "@blueprintjs/icons": "^3.27.0",
+    "@blueprintjs/select": "^3.16.5",
     "@hydrooj/utils": "workspace:*",
     "@types/json-schema": "^7.0.7",
     "@types/katex": "^0.11.0",
@@ -44,7 +44,7 @@
     "diff-dom": "^4.2.2",
     "echarts": "^5.1.2",
     "emojify.js": "^1.1.0",
-    "eslint": "^7.28.0",
+    "eslint": "^7.29.0",
     "eslint-config-airbnb": "^18.2.1",
     "eslint-import-resolver-webpack": "^0.13.1",
     "eslint-plugin-babel": "^5.3.1",
@@ -66,19 +66,19 @@
     "jquery-scroll-lock": "^3.1.3",
     "jquery.easing": "^1.4.1",
     "jquery.transit": "^0.9.12",
-    "mini-css-extract-plugin": "^1.6.0",
+    "mini-css-extract-plugin": "^1.6.1",
     "moment": "^2.29.1",
-    "monaco-editor": "^0.24.0",
+    "monaco-editor": "^0.25.2",
     "monaco-editor-webpack-plugin": "^3.1.0",
     "nanoid": "^3.1.23",
     "normalize.css": "^8.0.1",
     "nprogress": "^0.2.0",
-    "optimize-css-assets-webpack-plugin": "^5.0.6",
+    "optimize-css-assets-webpack-plugin": "^5.0.8",
     "pickadate": "^3.6.4",
     "plugin-error": "^1.0.1",
     "postcss-loader": "^3.0.0",
     "prism-themes": "^1.7.0",
-    "prismjs": "^1.23.0",
+    "prismjs": "^1.24.0",
     "prop-types": "^15.7.2",
     "react": "^17.0.2",
     "react-dom": "^17.0.2",
diff --git a/packages/utils/package.json b/packages/utils/package.json
index 11b5be79c..63a922d70 100644
--- a/packages/utils/package.json
+++ b/packages/utils/package.json
@@ -16,7 +16,7 @@
     },
     "devDependencies": {
         "@types/fs-extra": "^9.0.11",
-        "@types/node": "^15.12.4",
+        "@types/node": "^15.12.5",
         "moment-timezone": "^0.5.33"
     }
 }
diff --git a/packages/vjudge/package.json b/packages/vjudge/package.json
index c8c480ac2..b4b914b63 100644
--- a/packages/vjudge/package.json
+++ b/packages/vjudge/package.json
@@ -14,7 +14,7 @@
         "superagent-proxy": "^2.1.0"
     },
     "devDependencies": {
-        "@types/jsdom": "^16.2.11",
+        "@types/jsdom": "^16.2.12",
         "@types/superagent-proxy": "^2.0.0"
     }
 }