diff --git a/package-lock.json b/package-lock.json
index a5481de..ff2ed64 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12,7 +12,8 @@
         "@types/node": "^22.15.17",
         "bulma": "^1.0.4",
         "tailwindcss": "^4.1.6",
-        "vue": "^3.5.13"
+        "vue": "^3.5.13",
+        "vue-i18n": "^11.1.3"
       },
       "devDependencies": {
         "@vitejs/plugin-vue": "^5.2.3",
@@ -482,6 +483,50 @@
         "node": ">=18"
       }
     },
+    "node_modules/@intlify/core-base": {
+      "version": "11.1.3",
+      "resolved": "https://registry.npmjs.org/@intlify/core-base/-/core-base-11.1.3.tgz",
+      "integrity": "sha512-cMuHunYO7LE80azTitcvEbs1KJmtd6g7I5pxlApV3Jo547zdO3h31/0uXpqHc+Y3RKt1wo2y68RGSx77Z1klyA==",
+      "license": "MIT",
+      "dependencies": {
+        "@intlify/message-compiler": "11.1.3",
+        "@intlify/shared": "11.1.3"
+      },
+      "engines": {
+        "node": ">= 16"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/kazupon"
+      }
+    },
+    "node_modules/@intlify/message-compiler": {
+      "version": "11.1.3",
+      "resolved": "https://registry.npmjs.org/@intlify/message-compiler/-/message-compiler-11.1.3.tgz",
+      "integrity": "sha512-7rbqqpo2f5+tIcwZTAG/Ooy9C8NDVwfDkvSeDPWUPQW+Dyzfw2o9H103N5lKBxO7wxX9dgCDjQ8Umz73uYw3hw==",
+      "license": "MIT",
+      "dependencies": {
+        "@intlify/shared": "11.1.3",
+        "source-map-js": "^1.0.2"
+      },
+      "engines": {
+        "node": ">= 16"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/kazupon"
+      }
+    },
+    "node_modules/@intlify/shared": {
+      "version": "11.1.3",
+      "resolved": "https://registry.npmjs.org/@intlify/shared/-/shared-11.1.3.tgz",
+      "integrity": "sha512-pTFBgqa/99JRA2H1qfyqv97MKWJrYngXBA/I0elZcYxvJgcCw3mApAoPW3mJ7vx3j+Ti0FyKUFZ4hWxdjKaxvA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 16"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/kazupon"
+      }
+    },
     "node_modules/@isaacs/fs-minipass": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/@isaacs/fs-minipass/-/fs-minipass-4.0.1.tgz",
@@ -1488,6 +1533,12 @@
         "he": "^1.2.0"
       }
     },
+    "node_modules/@vue/devtools-api": {
+      "version": "6.6.4",
+      "resolved": "https://registry.npmjs.org/@vue/devtools-api/-/devtools-api-6.6.4.tgz",
+      "integrity": "sha512-sGhTPMuXqZ1rVOk32RylztWkfXTRhuS7vgAKv0zjqk8gbsHkJ7xfFf+jbySxt7tWObEJwyKaHMikV/WGDiQm8g==",
+      "license": "MIT"
+    },
     "node_modules/@vue/language-core": {
       "version": "2.2.10",
       "resolved": "https://registry.npmjs.org/@vue/language-core/-/language-core-2.2.10.tgz",
@@ -2529,6 +2580,26 @@
         }
       }
     },
+    "node_modules/vue-i18n": {
+      "version": "11.1.3",
+      "resolved": "https://registry.npmjs.org/vue-i18n/-/vue-i18n-11.1.3.tgz",
+      "integrity": "sha512-Pcylh9z9S5+CJAqgbRZ3EKxFIBIrtY5YUppU722GIT65+Nukm0TCqiQegZnNLCZkXGthxe0cpqj0AoM51H+6Gw==",
+      "license": "MIT",
+      "dependencies": {
+        "@intlify/core-base": "11.1.3",
+        "@intlify/shared": "11.1.3",
+        "@vue/devtools-api": "^6.5.0"
+      },
+      "engines": {
+        "node": ">= 16"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/kazupon"
+      },
+      "peerDependencies": {
+        "vue": "^3.0.0"
+      }
+    },
     "node_modules/vue-tsc": {
       "version": "2.2.10",
       "resolved": "https://registry.npmjs.org/vue-tsc/-/vue-tsc-2.2.10.tgz",
diff --git a/package.json b/package.json
index 1f1c12a..09e1f59 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,8 @@
     "@types/node": "^22.15.17",
     "bulma": "^1.0.4",
     "tailwindcss": "^4.1.6",
-    "vue": "^3.5.13"
+    "vue": "^3.5.13",
+    "vue-i18n": "^11.1.3"
   },
   "devDependencies": {
     "@vitejs/plugin-vue": "^5.2.3",