diff --git a/package-lock.json b/package-lock.json
index d64c7413..6c67aebc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5757,9 +5757,9 @@
       }
     },
     "typescript": {
-      "version": "3.9.7",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.7.tgz",
-      "integrity": "sha512-BLbiRkiBzAwsjut4x/dsibSTB6yWpwT5qWmC2OfuCg3GgVQCSgMs4vEctYPhsaGtd0AeuuHMkjZ2h2WG8MSzRw==",
+      "version": "4.3.5",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.3.5.tgz",
+      "integrity": "sha512-DqQgihaQ9cUrskJo9kIyW/+g0Vxsk8cDtZ52a3NGh0YNTfpUSArXSohyUGnvbPazEPLu398C0UxmKSOrPumUzA==",
       "dev": true
     },
     "uglify-js": {
diff --git a/package.json b/package.json
index 1116c41a..31f44633 100644
--- a/package.json
+++ b/package.json
@@ -60,7 +60,7 @@
     "ts-node": "^9.1.1",
     "tslint": "^6.1.3",
     "tslint-config-prettier": "^1.18.0",
-    "typescript": "^3.9.7"
+    "typescript": "^4.3.5"
   },
   "dependencies": {
     "@2fd/command": "^1.1.2",