diff --git a/package-lock.json b/package-lock.json
index 7d368422..ccf280b6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -14,7 +14,7 @@
         "@vuepress/plugin-back-to-top": "^1.9.5",
         "@vuepress/plugin-google-analytics": "^1.9.5",
         "eslint": "^8.1.0",
-        "typescript": "4.2.4",
+        "typescript": "4.9.4",
         "vuepress": "1.4.0"
       }
     },
@@ -15901,9 +15901,9 @@
       }
     },
     "node_modules/typescript": {
-      "version": "4.2.4",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.2.4.tgz",
-      "integrity": "sha512-V+evlYHZnQkaz8TRBuxTA92yZBPotr5H+WhQ7bD3hZUndx5tGOa1fuCgeSjxAzM1RiN5IzvadIXTVefuuwZCRg==",
+      "version": "4.9.4",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.9.4.tgz",
+      "integrity": "sha512-Uz+dTXYzxXXbsFpM86Wh3dKCxrQqUcVMxwU54orwlJjOpO3ao8L7j5lH+dWfTwgCwIuM9GQ2kvVotzYJMXTBZg==",
       "dev": true,
       "bin": {
         "tsc": "bin/tsc",
@@ -30434,9 +30434,9 @@
       }
     },
     "typescript": {
-      "version": "4.2.4",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.2.4.tgz",
-      "integrity": "sha512-V+evlYHZnQkaz8TRBuxTA92yZBPotr5H+WhQ7bD3hZUndx5tGOa1fuCgeSjxAzM1RiN5IzvadIXTVefuuwZCRg==",
+      "version": "4.9.4",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.9.4.tgz",
+      "integrity": "sha512-Uz+dTXYzxXXbsFpM86Wh3dKCxrQqUcVMxwU54orwlJjOpO3ao8L7j5lH+dWfTwgCwIuM9GQ2kvVotzYJMXTBZg==",
       "dev": true
     },
     "uc.micro": {
diff --git a/package.json b/package.json
index 0e771a4e..84667c37 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
     "@nuxtjs/eslint-config-typescript": "^8.0.0",
     "@babel/eslint-parser": "^7.16.3",
     "eslint": "^8.1.0",
-    "typescript": "4.2.4",
+    "typescript": "4.9.4",
     "vuepress": "1.4.0",
     "@vuepress/plugin-back-to-top": "^1.9.5",
     "@vuepress/plugin-google-analytics": "^1.9.5"