diff --git a/package-lock.json b/package-lock.json
index f80459e..7c9fa22 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2458,9 +2458,9 @@
       }
     },
     "typescript": {
-      "version": "4.3.4",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.3.4.tgz",
-      "integrity": "sha512-uauPG7XZn9F/mo+7MrsRjyvbxFpzemRjKEZXS4AK83oP2KKOJPvb+9cO/gmnv8arWZvhnjVOXz7B49m1l0e9Ew=="
+      "version": "4.9.5",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.9.5.tgz",
+      "integrity": "sha512-1FXk9E2Hm+QzZQ7z+McJiHL4NW1F2EzMu9Nq9i3zAaGqibafqYwCVU6WyWAuyQRRzOlxou8xZSyXLEN8oKj24g=="
     },
     "unpipe": {
       "version": "1.0.0",
diff --git a/package.json b/package.json
index 909ceec..b5f71f5 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
     "koa-router": "10.0.0",
     "koa-static": "5.0.0",
     "ts-node": "10.0.0",
-    "typescript": "4.3.4",
+    "typescript": "4.9.5",
     "yargs": "17.0.1"
   },
   "devDependencies": {