diff --git a/package.json b/package.json
index 05f47e698..f4048f08c 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
     "license": "AGPL-3.0-only",
     "devDependencies": {
         "@types/cross-spawn": "^6.0.2",
-        "@types/node": "^15.14.7",
+        "@types/node": "^16.4.12",
         "@types/semver": "^7.3.8",
         "@typescript-eslint/eslint-plugin": "^4.29.0",
         "@typescript-eslint/parser": "^4.29.0",
@@ -41,7 +41,7 @@
         "eslint-plugin-import": "^2.23.4",
         "fs-extra": "^10.0.0",
         "globby": "^11.0.4",
-        "latest-version": "^5.1.0",
+        "latest-version": "^6.0.0",
         "mongodb": "^3.6.11",
         "nmls": "^3.0.1",
         "ora": "^5.4.1",
diff --git a/packages/ui-default/package.json b/packages/ui-default/package.json
index f4380a126..389c86e46 100644
--- a/packages/ui-default/package.json
+++ b/packages/ui-default/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hydrooj/ui-default",
-  "version": "4.14.13",
+  "version": "4.14.14",
   "author": "undefined <i@undefined.moe>",
   "license": "AGPL-3.0",
   "main": "hydro.js",
diff --git a/packages/ui-default/pages/problem_submit.page.js b/packages/ui-default/pages/problem_submit.page.js
index cd18dcdd4..cbae3bead 100644
--- a/packages/ui-default/pages/problem_submit.page.js
+++ b/packages/ui-default/pages/problem_submit.page.js
@@ -41,7 +41,7 @@ const page = new NamedPage(['problem_submit', 'contest_detail_problem_submit', '
     $('#codelang-main-select').val(m);
     const fallback = onChangeMain.call({ value: m }, false);
     $('#codelang-sub-select').val(current);
-    if (!$('#codelang-sub-select').val()) {
+    if (fallback && !$('#codelang-sub-select').val()) {
       $('#codelang-sub-select').val(fallback);
       $('[name="lang"]').val(fallback);
     }