diff --git a/package-lock.json b/package-lock.json
index 11378a7df..a2a7f82bb 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -34,7 +34,7 @@
         "v-clipboard": "3.0.0-next.1",
         "vue": "^2.7.0",
         "vue-chartjs": "^5.2.0",
-        "vue-i18n": "^8.28.2",
+        "vue-i18n": "^9.14.5",
         "vue-multiselect": "^2.1.6",
         "vue-read-more-smooth": "^0.1.8",
         "vue-router": "^3.2.0",
@@ -1813,6 +1813,50 @@
       "deprecated": "Use @eslint/object-schema instead",
       "dev": true
     },
+    "node_modules/@intlify/core-base": {
+      "version": "9.14.5",
+      "resolved": "https://registry.npmjs.org/@intlify/core-base/-/core-base-9.14.5.tgz",
+      "integrity": "sha512-5ah5FqZG4pOoHjkvs8mjtv+gPKYU0zCISaYNjBNNqYiaITxW8ZtVih3GS/oTOqN8d9/mDLyrjD46GBApNxmlsA==",
+      "license": "MIT",
+      "dependencies": {
+        "@intlify/message-compiler": "9.14.5",
+        "@intlify/shared": "9.14.5"
+      },
+      "engines": {
+        "node": ">= 16"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/kazupon"
+      }
+    },
+    "node_modules/@intlify/message-compiler": {
+      "version": "9.14.5",
+      "resolved": "https://registry.npmjs.org/@intlify/message-compiler/-/message-compiler-9.14.5.tgz",
+      "integrity": "sha512-IHzgEu61/YIpQV5Pc3aRWScDcnFKWvQA9kigcINcCBXN8mbW+vk9SK+lDxA6STzKQsVJxUPg9ACC52pKKo3SVQ==",
+      "license": "MIT",
+      "dependencies": {
+        "@intlify/shared": "9.14.5",
+        "source-map-js": "^1.0.2"
+      },
+      "engines": {
+        "node": ">= 16"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/kazupon"
+      }
+    },
+    "node_modules/@intlify/shared": {
+      "version": "9.14.5",
+      "resolved": "https://registry.npmjs.org/@intlify/shared/-/shared-9.14.5.tgz",
+      "integrity": "sha512-9gB+E53BYuAEMhbCAxVgG38EZrk59sxBtv3jSizNL2hEWlgjBjAw1AwpLHtNaeda12pe6W20OGEa0TwuMSRbyQ==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 16"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/kazupon"
+      }
+    },
     "node_modules/@jest/schemas": {
       "version": "29.6.3",
       "resolved": "https://registry.npmjs.org/@jest/schemas/-/schemas-29.6.3.tgz",
@@ -3232,6 +3276,12 @@
       "integrity": "sha512-ncTzHV7NvsQZkYe1DW7cbDLm0YpzHmZF5r/iyP3ZnQtMiJ+pjzisCiMNI+Sj+xQF5pXhSHxSB3uDbsBTzY/c2A==",
       "dev": true
     },
+    "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/reactivity": {
       "version": "3.5.17",
       "resolved": "https://registry.npmjs.org/@vue/reactivity/-/reactivity-3.5.17.tgz",
@@ -12405,6 +12455,14 @@
         "node": ">=10"
       }
     },
+    "node_modules/vue-cli-plugin-i18n/node_modules/vue-i18n": {
+      "version": "8.28.2",
+      "resolved": "https://registry.npmjs.org/vue-i18n/-/vue-i18n-8.28.2.tgz",
+      "integrity": "sha512-C5GZjs1tYlAqjwymaaCPDjCyGo10ajUphiwA922jKt9n7KPpqR7oM1PCwYzhB/E7+nT3wfdG3oRre5raIT1rKA==",
+      "deprecated": "Vue I18n v8.x has reached EOL and is no longer actively maintained. About maintenance status, see https://vue-i18n.intlify.dev/guide/maintenance.html",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/vue-eslint-parser": {
       "version": "8.3.0",
       "resolved": "https://registry.npmjs.org/vue-eslint-parser/-/vue-eslint-parser-8.3.0.tgz",
@@ -12465,10 +12523,24 @@
       "dev": true
     },
     "node_modules/vue-i18n": {
-      "version": "8.28.2",
-      "resolved": "https://registry.npmjs.org/vue-i18n/-/vue-i18n-8.28.2.tgz",
-      "integrity": "sha512-C5GZjs1tYlAqjwymaaCPDjCyGo10ajUphiwA922jKt9n7KPpqR7oM1PCwYzhB/E7+nT3wfdG3oRre5raIT1rKA==",
-      "deprecated": "Vue I18n v8.x has reached EOL and is no longer actively maintained. About maintenance status, see https://vue-i18n.intlify.dev/guide/maintenance.html"
+      "version": "9.14.5",
+      "resolved": "https://registry.npmjs.org/vue-i18n/-/vue-i18n-9.14.5.tgz",
+      "integrity": "sha512-0jQ9Em3ymWngyiIkj0+c/k7WgaPO+TNzjKSNq9BvBQaKJECqn9cd9fL4tkDhB5G1QBskGl9YxxbDAhgbFtpe2g==",
+      "license": "MIT",
+      "dependencies": {
+        "@intlify/core-base": "9.14.5",
+        "@intlify/shared": "9.14.5",
+        "@vue/devtools-api": "^6.5.0"
+      },
+      "engines": {
+        "node": ">= 16"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/kazupon"
+      },
+      "peerDependencies": {
+        "vue": "^3.0.0"
+      }
     },
     "node_modules/vue-i18n-extract": {
       "version": "1.2.3",
diff --git a/package.json b/package.json
index c55f57e5d..8cab9f766 100644
--- a/package.json
+++ b/package.json
@@ -62,7 +62,7 @@
     "v-clipboard": "3.0.0-next.1",
     "vue": "^2.7.0",
     "vue-chartjs": "^5.2.0",
-    "vue-i18n": "^8.28.2",
+    "vue-i18n": "^9.14.5",
     "vue-multiselect": "^2.1.6",
     "vue-read-more-smooth": "^0.1.8",
     "vue-router": "^3.2.0",