diff --git a/backend/package-lock.json b/backend/package-lock.json
index 3c95414..6af953c 100644
--- a/backend/package-lock.json
+++ b/backend/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "rating-system-backend",
-  "version": "0.3.0",
+  "version": "0.4.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "rating-system-backend",
-      "version": "0.3.0",
+      "version": "0.4.0",
       "license": "MIT",
       "devDependencies": {
         "prettier": "^3.3.3",
diff --git a/backend/package.json b/backend/package.json
index 47479c5..ff63592 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -1,6 +1,6 @@
 {
   "name": "rating-system-backend",
-  "version": "0.3.0",
+  "version": "0.4.0",
   "scripts": {
     "format": "npx prettier --write app/ && python -m black app/",
     "lint": "pylint app/"
diff --git a/frontend/package-lock.json b/frontend/package-lock.json
index ba33297..80827c3 100644
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "rating-system-frontend",
-  "version": "0.3.0",
+  "version": "0.4.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "rating-system-frontend",
-      "version": "0.3.0",
+      "version": "0.4.0",
       "license": "MIT",
       "dependencies": {
         "axios": "^1.7.7",
diff --git a/frontend/package.json b/frontend/package.json
index 26cc713..32fa99f 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -1,6 +1,6 @@
 {
   "name": "rating-system-frontend",
-  "version": "0.3.0",
+  "version": "0.4.0",
   "private": true,
   "type": "module",
   "scripts": {
diff --git a/frontend/src/views/AdminView.vue b/frontend/src/views/AdminView.vue
index a692a4b..f2f14ad 100644
--- a/frontend/src/views/AdminView.vue
+++ b/frontend/src/views/AdminView.vue
@@ -137,7 +137,7 @@ function addUpdateLinks(row, id) {
           placeholder="额外信息"
           type="text"
           name="info"
-          value='{"links": "https://codeforces.com/contest/2024/problem/A", "pid": "2024A", "type": "未分类"}'
+          value='{"links": "https://codeforces.com/contest/2024/problem/A", "pid": "2024A", "type": ["未分类"]}'
         />
       </div>
       <button type="submit" class="ui blue submit button">提交</button>
@@ -176,7 +176,7 @@ function addUpdateLinks(row, id) {
           placeholder="额外信息"
           type="text"
           name="info"
-          value='{"links": "https://codeforces.com/contest/2024/problem/A", "pid": "2024A", "type": "未分类"}'
+          value='{"links": "https://codeforces.com/contest/2024/problem/A", "pid": "2024A", "type": ["未分类"]}'
         />
       </div>
       <button type="submit" class="ui blue submit button">提交</button>
diff --git a/frontend/src/views/ProblemsView.vue b/frontend/src/views/ProblemsView.vue
index a0dab9d..2aabe30 100644
--- a/frontend/src/views/ProblemsView.vue
+++ b/frontend/src/views/ProblemsView.vue
@@ -12,7 +12,7 @@ const voteModal = ref(false)
 const pid = ref(1)
 const showVotesModal = ref(false)
 const selected = ref()
-const options = ref([{ text: '未分类', value: '未分类' }])
+const options = ref([])
 const detailsModal = ref(false)
 const loggedIn = window.loggedIn
 
@@ -160,12 +160,14 @@ function showTable() {
   let table = $('#problems-table tbody')
   table.empty()
   for (let i = 0; i < problemsData.length; i++) {
-    var type = '未分类'
+    var type = ['未分类']
     if ('type' in problemsData[i]['info']) type = problemsData[i]['info']['type']
-    if (!Object.values(options.value).some((el) => el.value == type)) {
-      options.value.push({ text: type, value: type })
-    }
-    if (selected.value != undefined && selected.value.value != type) continue
+    type.forEach(function (t) {
+      if (!options.value.some((el) => el.value == t)) {
+        options.value.push({ text: t, value: t })
+      }
+    })
+    if (selected.value != undefined && !type.includes(selected.value.value)) continue
     let row = $('<tr>')
     ;(function (data) {
       row.append($('<td>').text(data['pid']))