diff --git a/frontend/package.json b/frontend/package.json
index e97a0cd..c2aa77e 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -39,7 +39,7 @@
   "devDependencies": {
     "@types/react": "^18.2.43",
     "@types/react-dom": "^18.2.17",
-    "@vitejs/plugin-legacy": "^7.2.1",
+    "@vitejs/plugin-legacy": "^5.4.3",
     "@vitejs/plugin-react": "^4.2.1",
     "autoprefixer": "^10.4.16",
     "eslint": "^8.55.0",
diff --git a/frontend/yarn.lock b/frontend/yarn.lock
index ebbfd81..b8ad9fb 100644
--- a/frontend/yarn.lock
+++ b/frontend/yarn.lock
@@ -98,6 +98,27 @@
   resolved "https://registry.npmmirror.com/@babel/compat-data/-/compat-data-7.28.6.tgz#103f466803fa0f059e82ccac271475470570d74c"
   integrity sha512-2lfu57JtzctfIrcGMz992hyLlByuzgIk58+hhGCxjKZ3rWI82NnVLjXcaTqkI2NvlcvOskZaiZ5kjUALo3Lpxg==
 
+"@babel/core@^7.25.8":
+  version "7.28.6"
+  resolved "https://registry.npmmirror.com/@babel/core/-/core-7.28.6.tgz#531bf883a1126e53501ba46eb3bb414047af507f"
+  integrity sha512-H3mcG6ZDLTlYfaSNi0iOKkigqMFvkTKlGUYlD8GW7nNOYRrevuA46iTypPyv+06V3fEmvvazfntkBU34L0azAw==
+  dependencies:
+    "@babel/code-frame" "^7.28.6"
+    "@babel/generator" "^7.28.6"
+    "@babel/helper-compilation-targets" "^7.28.6"
+    "@babel/helper-module-transforms" "^7.28.6"
+    "@babel/helpers" "^7.28.6"
+    "@babel/parser" "^7.28.6"
+    "@babel/template" "^7.28.6"
+    "@babel/traverse" "^7.28.6"
+    "@babel/types" "^7.28.6"
+    "@jridgewell/remapping" "^2.3.5"
+    convert-source-map "^2.0.0"
+    debug "^4.1.0"
+    gensync "^1.0.0-beta.2"
+    json5 "^2.2.3"
+    semver "^6.3.1"
+
 "@babel/core@^7.28.0":
   version "7.28.5"
   resolved "https://registry.npmmirror.com/@babel/core/-/core-7.28.5.tgz"
@@ -325,6 +346,14 @@
     "@babel/template" "^7.27.2"
     "@babel/types" "^7.28.4"
 
+"@babel/helpers@^7.28.6":
+  version "7.28.6"
+  resolved "https://registry.npmmirror.com/@babel/helpers/-/helpers-7.28.6.tgz#fca903a313ae675617936e8998b814c415cbf5d7"
+  integrity sha512-xOBvwq86HHdB7WUDTfKfT/Vuxh7gElQ+Sfti2Cy6yIWNW05P8iUslOVcZ4/sKbE+/jQaukQAdz/gf3724kYdqw==
+  dependencies:
+    "@babel/template" "^7.28.6"
+    "@babel/types" "^7.28.6"
+
 "@babel/parser@^7.1.0", "@babel/parser@^7.20.7", "@babel/parser@^7.27.2", "@babel/parser@^7.28.5":
   version "7.28.5"
   resolved "https://registry.npmmirror.com/@babel/parser/-/parser-7.28.5.tgz"
@@ -601,7 +630,7 @@
     "@babel/helper-module-transforms" "^7.28.6"
     "@babel/helper-plugin-utils" "^7.28.6"
 
-"@babel/plugin-transform-modules-systemjs@^7.27.1", "@babel/plugin-transform-modules-systemjs@^7.28.5":
+"@babel/plugin-transform-modules-systemjs@^7.28.5":
   version "7.28.5"
   resolved "https://registry.npmmirror.com/@babel/plugin-transform-modules-systemjs/-/plugin-transform-modules-systemjs-7.28.5.tgz#7439e592a92d7670dfcb95d0cbc04bd3e64801d2"
   integrity sha512-vn5Jma98LCOeBy/KpeQhXcV2WZgaRUtjwQmjoBuLNlOmkg0fB5pdvYVeWRYI69wWKwK2cD1QbMiUQnoujWvrew==
@@ -816,7 +845,7 @@
     "@babel/helper-create-regexp-features-plugin" "^7.28.5"
     "@babel/helper-plugin-utils" "^7.28.6"
 
-"@babel/preset-env@^7.28.0":
+"@babel/preset-env@^7.25.8":
   version "7.28.6"
   resolved "https://registry.npmmirror.com/@babel/preset-env/-/preset-env-7.28.6.tgz#b4586bb59d8c61be6c58997f4912e7ea6bd17178"
   integrity sha512-GaTI4nXDrs7l0qaJ6Rg06dtOXTBCG6TMDB44zbqofCIC4PqC7SEvmFFtpxzCDw9W5aJ7RKVshgXTLvLdBFV/qw==
@@ -1681,21 +1710,17 @@
   resolved "https://registry.npmmirror.com/@ungap/structured-clone/-/structured-clone-1.3.0.tgz#d06bbb384ebcf6c505fde1c3d0ed4ddffe0aaff8"
   integrity sha512-WmoN8qaIAo7WTYWbAZuG8PYEhn5fkz7dZrqTBZ7dtt//lL2Gwms1IcnQ5yHqjDfX8Ft5j4YzDM23f87zBfDe9g==
 
-"@vitejs/plugin-legacy@^7.2.1":
-  version "7.2.1"
-  resolved "https://registry.npmmirror.com/@vitejs/plugin-legacy/-/plugin-legacy-7.2.1.tgz#7c6427f51ec3b17765aa6937ae65233b7f7b029b"
-  integrity sha512-CaXb/y0mlfu7jQRELEJJc2/5w2bX2m1JraARgFnvSB2yfvnCNJVWWlqAo6WjnKoepOwKx8gs0ugJThPLKCOXIg==
+"@vitejs/plugin-legacy@^5.4.3":
+  version "5.4.3"
+  resolved "https://registry.npmmirror.com/@vitejs/plugin-legacy/-/plugin-legacy-5.4.3.tgz#9ba634d25fb56e350cb0f576ce88099218b3b9b9"
+  integrity sha512-wsyXK9mascyplcqvww1gA1xYiy29iRHfyciw+a0t7qRNdzX6PdfSWmOoCi74epr87DujM+5J+rnnSv+4PazqVg==
   dependencies:
-    "@babel/core" "^7.28.0"
-    "@babel/plugin-transform-dynamic-import" "^7.27.1"
-    "@babel/plugin-transform-modules-systemjs" "^7.27.1"
-    "@babel/preset-env" "^7.28.0"
-    babel-plugin-polyfill-corejs3 "^0.13.0"
-    babel-plugin-polyfill-regenerator "^0.6.5"
-    browserslist "^4.25.1"
+    "@babel/core" "^7.25.8"
+    "@babel/preset-env" "^7.25.8"
+    browserslist "^4.24.0"
     browserslist-to-esbuild "^2.1.1"
-    core-js "^3.45.0"
-    magic-string "^0.30.17"
+    core-js "^3.38.1"
+    magic-string "^0.30.12"
     regenerator-runtime "^0.14.1"
     systemjs "^6.15.1"
 
@@ -2010,7 +2035,7 @@ browserslist-to-esbuild@^2.1.1:
   dependencies:
     meow "^13.0.0"
 
-browserslist@^4.24.0, browserslist@^4.25.1, browserslist@^4.28.0, browserslist@^4.28.1:
+browserslist@^4.24.0, browserslist@^4.28.0, browserslist@^4.28.1:
   version "4.28.1"
   resolved "https://registry.npmmirror.com/browserslist/-/browserslist-4.28.1.tgz"
   integrity sha512-ZC5Bd0LgJXgwGqUknZY/vkUQ04r8NXnJZ3yYi4vDmSiZmC/pdSN0NbNRPxZpbtO4uAfDUAFffO8IZoM3Gj8IkA==
@@ -2218,7 +2243,7 @@ core-js-compat@^3.43.0:
   dependencies:
     browserslist "^4.28.0"
 
-core-js@^3.45.0:
+core-js@^3.38.1:
   version "3.47.0"
   resolved "https://registry.npmmirror.com/core-js/-/core-js-3.47.0.tgz#436ef07650e191afeb84c24481b298bd60eb4a17"
   integrity sha512-c3Q2VVkGAUyupsjRnaNX6u8Dq2vAdzm9iuPj5FW0fRxzlxgq9Q39MDq10IvmQSpLgHQNyQzQmOo6bgGHmH3NNg==
@@ -3638,7 +3663,7 @@ lru-cache@^5.1.1:
   dependencies:
     yallist "^3.0.2"
 
-magic-string@^0.30.17:
+magic-string@^0.30.12:
   version "0.30.21"
   resolved "https://registry.npmmirror.com/magic-string/-/magic-string-0.30.21.tgz#56763ec09a0fa8091df27879fd94d19078c00d91"
   integrity sha512-vd2F4YUyEXKGcLHoq+TEyCjxueSeHnFxyyjNp80yg0XV4vUhnDer/lvvlqM/arB5bXQN5K2/3oinyCRyx8T2CQ==