diff --git a/package-lock.json b/package-lock.json
index 63eeb08..277a25c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -16004,9 +16004,9 @@
       }
     },
     "typescript": {
-      "version": "3.9.7",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.7.tgz",
-      "integrity": "sha512-BLbiRkiBzAwsjut4x/dsibSTB6yWpwT5qWmC2OfuCg3GgVQCSgMs4vEctYPhsaGtd0AeuuHMkjZ2h2WG8MSzRw==",
+      "version": "4.3.4",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.3.4.tgz",
+      "integrity": "sha512-uauPG7XZn9F/mo+7MrsRjyvbxFpzemRjKEZXS4AK83oP2KKOJPvb+9cO/gmnv8arWZvhnjVOXz7B49m1l0e9Ew==",
       "dev": true
     },
     "uc.micro": {
diff --git a/package.json b/package.json
index 8567bbd..4af3b8e 100644
--- a/package.json
+++ b/package.json
@@ -66,7 +66,7 @@
     "shx": "^0.3.2",
     "stylelint": "^13.6.1",
     "stylelint-config-standard": "^20.0.0",
-    "typescript": "^3.9.7",
+    "typescript": "^4.3.4",
     "yaml-lint": "^1.2.4"
   }
 }